2008 INFINITI FX35 fuel pressure

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CONTENTS
ENGINE CONTROL SYSTEM
VQ35DE
SERVICE INFORMATION .. .........................
17
INDEX FOR DTC ............................................ ....17
DTC No. Index .................................................... ....17
Alphabetical Index ...................................................20
PRECAUTIONS ..................................................25
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
25
Precaution for Procedure without Cowl Top Cover ....25
On Board Diagnosis (OBD) System of Engine and
A/T ...........................................................................
25
Precaution ...............................................................26
PREPARATION ..................................................29
Special Service Tool ........................................... ....29
Commercial Service Tool ........................................30
ENGINE CONTROL SYSTEM ............................31
Schematic ........................................................... ....31
Multiport Fuel Injection (MFI) System .....................31
Electronic Ignition (EI) System ................................34
Fuel Cut Control (at No Load and High Engine
Speed) .....................................................................
34
AIR CONDITIONING CUT CONTROL ...............36
Input/Output Signal Chart .................................... ....36
System Description .................................................36
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ...............................................................
37
System Description ............................................. ....37
Component Description ...........................................38
CAN COMMUNICATION ....................................39
System Description ............................................. ....39
EVAPORATIVE EMISSION SYSTEM ................40
Description .......................................................... ....40
Component Inspection ......................................... ....42
Removal and Installation .........................................44
How to Detect Fuel Vapor Leakage .........................44
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) ......................................................
46
System Description ..................................................46
Diagnosis Procedure ...............................................46
Component Inspection .............................................48
POSITIVE CRANKCASE VENTILATION .........51
Description ...............................................................51
Component Inspection .............................................51
IVIS (INFINITI VEHICLE IMMOBILIZER SYS-
TEM-NATS) .......................................................
53
Description ...............................................................53
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....54
Introduction ..............................................................54
Two Trip Detection Logic .........................................54
Emission-Related Diagnostic Information ................55
Malfunction Indicator Lamp (MIL) ............................71
OBD System Operation Chart .................................74
BASIC SERVICE PROCEDURE .......................80
Basic Inspection ......................................................80
Idle Speed and Ignition Timing Check .....................84
Procedure After Replacing ECM .............................84
VIN Registration ......................................................84
Accelerator Pedal Released Position Learning .......85
Throttle Valve Closed Position Learning .................85
Idle Air Volume Learning .........................................85
Fuel Pressure Check ...............................................87
TROUBLE DIAGNOSIS ....................................89
Trouble Diagnosis Introduction ................................89
DTC Inspection Priority Chart ..................................93
Fail-Safe Chart ........................................................95
Symptom Matrix Chart .............................................96
Engine Control Component Parts Location ...........100
Vacuum Hose Drawing ..........................................106
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EC-5
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DTC P0447 EVAP CANISTER VENT CON-
TROL VALVE ................................................. ..
361
Component Description ....................................... ..361
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
361
On Board Diagnosis Logic ....................................361
DTC Confirmation Procedure ................................361
Wiring Diagram .....................................................362
Diagnosis Procedure .............................................363
Component Inspection ..........................................364
DTC P0448 EVAP CANISTER VENT CON-
TROL VALVE ...................................................
366
Component Description ....................................... ..366
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
366
On Board Diagnosis Logic ....................................366
DTC Confirmation Procedure ................................366
Wiring Diagram .....................................................368
Diagnosis Procedure .............................................369
Component Inspection ..........................................370
DTC P0451 EVAP CONTROL SYSTEM
PRESSURE SENSOR .................................... ..
372
Component Description ....................................... ..372
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
372
On Board Diagnosis Logic ....................................372
DTC Confirmation Procedure ................................372
Diagnosis Procedure .............................................373
Component Inspection ..........................................373
DTC P0452 EVAP CONTROL SYSTEM
PRESSURE SENSOR .................................... ..
375
Component Description ....................................... ..375
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
375
On Board Diagnosis Logic ....................................375
DTC Confirmation Procedure ................................375
Wiring Diagram .....................................................377
Diagnosis Procedure .............................................378
Component Inspection ..........................................380
DTC P0453 EVAP CONTROL SYSTEM
PRESSURE SENSOR .................................... ..
381
Component Description ....................................... ..381
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
381
On Board Diagnosis Logic ....................................381
DTC Confirmation Procedure ................................381
Wiring Diagram .....................................................383
Diagnosis Procedure .............................................384
Component Inspection ..........................................387
DTC P0455 EVAP CONTROL SYSTEM ..........388
On Board Diagnosis Logic .................................. ..388
DTC Confirmation Procedure ................................388
Diagnosis Procedure .............................................389
DTC P0456 EVAP CONTROL SYSTEM ..........394
On Board Diagnosis Logic ................................... ..394
DTC Confirmation Procedure ................................395
Overall Function Check .........................................395
Diagnosis Procedure .............................................396
DTC P0460 FUEL LEVEL SENSOR ...............401
Component Description .........................................401
On Board Diagnosis Logic .....................................401
DTC Confirmation Procedure ................................401
Diagnosis Procedure .............................................401
Removal and Installation .......................................402
DTC P0461 FUEL LEVEL SENSOR ...............403
Component Description .........................................403
On Board Diagnosis Logic .....................................403
Overall Function Check .........................................403
Diagnosis Procedure .............................................404
Removal and Installation .......................................404
DTC P0462, P0463 FUEL LEVEL SENSOR ..405
Component Description .........................................405
On Board Diagnosis Logic .....................................405
DTC Confirmation Procedure ................................405
Diagnosis Procedure .............................................405
Removal and Installation .......................................406
DTC P0500 VSS ..............................................407
Description .............................................................407
On Board Diagnosis Logic .....................................407
DTC Confirmation Procedure ................................407
Overall Function Check .........................................408
Diagnosis Procedure .............................................408
DTC P0506 ISC SYSTEM ...............................409
Description .............................................................409
On Board Diagnosis Logic .....................................409
DTC Confirmation Procedure ................................409
Diagnosis Procedure .............................................409
DTC P0507 ISC SYSTEM ...............................411
Description .............................................................411
On Board Diagnosis Logic .....................................411
DTC Confirmation Procedure ................................411
Diagnosis Procedure .............................................411
DTC P0550 PSP SENSOR ..............................413
Component Description .........................................413
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
413
On Board Diagnosis Logic .....................................413
DTC Confirmation Procedure ................................413
Wiring Diagram ......................................................414
Diagnosis Procedure .............................................415
Component Inspection ...........................................416
Removal and Installation .......................................417
DTC P0603 ECM POWER SUPPLY ...............418
Component Description .........................................418
On Board Diagnosis Logic .....................................418
DTC Confirmation Procedure ................................418
Wiring Diagram ......................................................419
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EC-8
Component Inspection ...........................................545
ASCD INDICATOR ..........................................547
Component Description ....................................... ..547
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
547
Wiring Diagram ......................................................548
Diagnosis Procedure .............................................548
ELECTRICAL LOAD SIGNAL .........................550
Description ........................................................... ..550
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
550
Diagnosis Procedure .............................................550
FUEL INJECTOR .............................................552
Component Description ....................................... ..552
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
552
Wiring Diagram ......................................................553
Diagnosis Procedure .............................................554
Component Inspection ...........................................557
Removal and Installation .......................................557
FUEL PUMP .....................................................558
Description ........................................................... ..558
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
558
Wiring Diagram ......................................................559
Diagnosis Procedure .............................................560
Component Inspection ...........................................562
Removal and Installation .......................................562
ICC BRAKE SWITCH ......................................563
Component Description ....................................... ..563
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
563
Wiring Diagram ......................................................564
Diagnosis Procedure .............................................565
Component Inspection ...........................................567
IGNITION SIGNAL ...........................................569
Component Description ....................................... ..569
Wiring Diagram ......................................................570
Diagnosis Procedure .............................................575
Component Inspection ...........................................578
Removal and Installation .......................................580
REFRIGERANT PRESSURE SENSOR ..........581
Component Description ....................................... ..581
Wiring Diagram ......................................................582
Diagnosis Procedure .............................................583
Removal and Installation .......................................585
SNOW MODE SWITCH ...................................586
Description ........................................................... ..586
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
586
Wiring Diagram ......................................................587
Diagnosis Procedure .............................................587
Component Inspection ...........................................589
MIL AND DATA LINK CONNECTOR ...............591
Wiring Diagram .................................................... .591
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
593
Fuel Pressure ....................................................... .593
Idle Speed and Ignition Timing .............................593
Calculated Load Value ..........................................593
Mass Air Flow Sensor ...........................................593
Intake Air Temperature Sensor .............................593
Engine Coolant Temperature Sensor ...................593
Air Fuel Ratio (A/F) Sensor 1 Heater ....................593
Heated Oxygen sensor 2 Heater ..........................593
Crankshaft Position Sensor (POS) .......................594
Camshaft Position Sensor (PHASE) .....................594
Throttle Control Motor .......................................... .594
Fuel Injector ..........................................................594
Fuel Pump .............................................................594
VK45DE
SERVICE INFORMATION .. .......................
595
INDEX FOR DTC ............................................ ..595
DTC No. Index ..................................................... .595
Alphabetical Index .................................................598
PRECAUTIONS .............................................. ..603
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
603
Precaution for Procedure without Cowl Top Cover .603
On Board Diagnosis (OBD) System of Engine and
A/T ........................................................................
603
Precaution .............................................................604
PREPARATION ................................................607
Special Service Tool ............................................ .607
Commercial Service Tool ......................................608
ENGINE CONTROL SYSTEM ..........................609
Schematic ............................................................ .609
Multiport Fuel Injection (MFI) System ...................609
Electronic Ignition (EI) System ..............................612
Fuel Cut Control (at No Load and High Engine
Speed) ..................................................................
612
AIR CONDITIONING CUT CONTROL .............614
Input/Output Signal Chart .................................... .614
System Description ...............................................614
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ..............................................................
615
System Description .............................................. .615
Component Description ........................................616
CAN COMMUNICATION ..................................617
System Description .............................................. .617
EVAPORATIVE EMISSION SYSTEM ..............618
Description ........................................................... .618
Component Inspection ..........................................620
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EC-9
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Removal and Installation .....................................
..
622
How to Detect Fuel Vapor Leakage ......................622
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) .....................................................
624
System Description ............................................. ..624
Diagnosis Procedure .............................................624
Component Inspection ..........................................626
POSITIVE CRANKCASE VENTILATION ........629
Description .......................................................... ..629
Component Inspection ..........................................629
IVIS (INFINITI VEHICLE IMMOBILIZER SYS-
TEM-NATS) ......................................................
631
Description .......................................................... ..631
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....632
Introduction ......................................................... ..632
Two Trip Detection Logic ......................................632
Emission-related Diagnostic Information ...............633
Malfunction Indicator Lamp (MIL) ..........................649
OBD System Operation Chart ...............................652
BASIC SERVICE PROCEDURE ......................658
Basic Inspection .................................................. ..658
Idle Speed and Ignition Timing Check ..................661
Procedure After Replacing ECM ...........................662
VIN Registration ....................................................662
Accelerator Pedal Released Position Learning .....662
Throttle Valve Closed Position Learning ...............663
Idle Air Volume Learning .......................................663
Fuel Pressure Check .............................................665
TROUBLE DIAGNOSIS ...................................666
Trouble Diagnosis Introduction ........................... ..666
DTC Inspection Priority Chart ...............................670
Fail-Safe Chart ......................................................671
Symptom Matrix Chart ..........................................673
Engine Control Component Parts Location ...........677
Vacuum Hose Drawing .........................................684
Circuit Diagram .....................................................685
ECM Harness Connector Terminal Layout ...........687
ECM Terminal and Reference Value ....................687
CONSULT-III Function (ENGINE) .........................695
Generic Scan Tool (GST) Function .......................704
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
705
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ..............................................................
709
Description .......................................................... ..709
Testing Condition ..................................................709
Inspection Procedure ............................................709
Diagnosis Procedure .............................................710
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT .........................................................
717
Description .......................................................... ..717
Diagnosis Procedure .............................................717
POWER SUPPLY AND GROUND CIRCUIT ..718
Wiring Diagram .................................................... ..718
Diagnosis Procedure .............................................719
Ground Inspection .................................................723
DTC U1000, U1001 CAN COMMUNICATION
LINE .................................................................
724
Description .............................................................724
On Board Diagnosis Logic .....................................724
DTC Confirmation Procedure ................................724
Wiring Diagram ......................................................725
Diagnosis Procedure .............................................725
DTC U1010 CAN COMMUNICATION .............726
Description .............................................................726
On Board Diagnosis Logic .....................................726
DTC Confirmation Procedure ................................726
Diagnosis Procedure .............................................726
DTC P0011, P0021 IVT CONTROL ................727
Description .............................................................727
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
728
On Board Diagnosis Logic .....................................728
DTC Confirmation Procedure ................................728
Wiring Diagram ......................................................730
Diagnosis Procedure .............................................733
Component Inspection ...........................................737
Removal and Installation .......................................738
DTC P0031, P0032, P0051, P0052 A/F SEN-
SOR 1 HEATER ..............................................
739
Description .............................................................739
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
739
On Board Diagnosis Logic .....................................739
DTC Confirmation Procedure ................................739
Wiring Diagram ......................................................740
Diagnosis Procedure .............................................743
Component Inspection ...........................................744
Removal and Installation .......................................745
DTC P0037, P0038, P0057, P0058 HO2S2
HEATER ..........................................................
746
Description .............................................................746
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
746
On Board Diagnosis Logic .....................................746
DTC Confirmation Procedure ................................746
Wiring Diagram ......................................................748
Diagnosis Procedure .............................................751
Component Inspection ...........................................752
Removal and Installation .......................................753
DTC P0075, P0081 IVT CONTROL SOLE-
NOID VALVE ...................................................
754
Component Description .........................................754
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
754
On Board Diagnosis Logic .....................................754
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EC-12
On Board Diagnosis Logic .....................................917
DTC Confirmation Procedure ................................917
Overall Function Check .........................................918
Diagnosis Procedure .............................................918
DTC P0441 EVAP CONTROL SYSTEM .........921
System Description .............................................. ..921
On Board Diagnosis Logic .....................................921
DTC Confirmation Procedure ................................921
Overall Function Check .........................................922
Diagnosis Procedure .............................................922
DTC P0442 EVAP CONTROL SYSTEM .........926
On Board Diagnosis Logic ................................... ..926
DTC Confirmation Procedure ................................926
Diagnosis Procedure .............................................927
DTC P0443 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ..............
933
Description ........................................................... ..933
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
933
On Board Diagnosis Logic .....................................934
DTC Confirmation Procedure ................................934
Wiring Diagram ......................................................935
Diagnosis Procedure .............................................936
Component Inspection ...........................................939
Removal and Installation .......................................939
DTC P0444, P0445 EVAP CANISTER PURGE
VOLUME CONTROL SOLENOID VALVE ......
940
Description ........................................................... ..940
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
940
On Board Diagnosis Logic .....................................941
DTC Confirmation Procedure ................................941
Wiring Diagram ......................................................942
Diagnosis Procedure .............................................943
Component Inspection ...........................................945
Removal and Installation .......................................945
DTC P0447 EVAP CANISTER VENT CON-
TROL VALVE ...................................................
946
Component Description ....................................... ..946
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
946
On Board Diagnosis Logic .....................................946
DTC Confirmation Procedure ................................946
Wiring Diagram ......................................................947
Diagnosis Procedure .............................................948
Component Inspection ...........................................949
DTC P0448 EVAP CANISTER VENT CON-
TROL VALVE ...................................................
951
Component Description ....................................... ..951
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
951
On Board Diagnosis Logic .....................................951
DTC Confirmation Procedure ................................951
Wiring Diagram ......................................................953
Diagnosis Procedure ............................................ .954
Component Inspection ..........................................955
DTC P0451 EVAP CONTROL SYSTEM
PRESSURE SENSOR .................................... ..
957
Component Description ....................................... .957
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
957
On Board Diagnosis Logic ....................................957
DTC Confirmation Procedure ................................957
Diagnosis Procedure .............................................958
Component Inspection ..........................................958
DTC P0452 EVAP CONTROL SYSTEM
PRESSURE SENSOR .................................... ..
960
Component Description ....................................... .960
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
960
On Board Diagnosis Logic ....................................960
DTC Confirmation Procedure ................................960
Wiring Diagram .....................................................962
Diagnosis Procedure .............................................963
Component Inspection ..........................................965
DTC P0453 EVAP CONTROL SYSTEM
PRESSURE SENSOR .................................... ..
966
Component Description ....................................... .966
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
966
On Board Diagnosis Logic ....................................966
DTC Confirmation Procedure ................................966
Wiring Diagram .....................................................968
Diagnosis Procedure .............................................969
Component Inspection ..........................................972
DTC P0455 EVAP CONTROL SYSTEM ..........973
On Board Diagnosis Logic ................................... .973
DTC Confirmation Procedure ................................973
Diagnosis Procedure .............................................974
DTC P0456 EVAP CONTROL SYSTEM ..........979
On Board Diagnosis Logic ................................... .979
DTC Confirmation Procedure ................................980
Overall Function Check .........................................980
Diagnosis Procedure .............................................981
DTC P0460 FUEL LEVEL SENSOR ................986
Component Description ....................................... .986
On Board Diagnosis Logic ....................................986
DTC Confirmation Procedure ................................986
Diagnosis Procedure .............................................986
Removal and Installation .......................................987
DTC P0461 FUEL LEVEL SENSOR ................988
Component Description ....................................... .988
On Board Diagnosis Logic ....................................988
Overall Function Check .........................................988
Diagnosis Procedure .............................................989
Removal and Installation .......................................989
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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EC-15
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DTC P2119 ELECTRIC THROTTLE CON-
TROL ACTUATOR .........................................
1102
Component Description .......................................1102
On Board Diagnosis Logic ..................................1102
DTC Confirmation Procedure ..............................1102
Diagnosis Procedure ...........................................1103
DTC P2122, P2123 APP SENSOR ................1104
Component Description .......................................1104
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1104
On Board Diagnosis Logic ..................................1104
DTC Confirmation Procedure ..............................1105
Wiring Diagram ...................................................1106
Diagnosis Procedure ...........................................1107
Component Inspection ........................................1109
Removal and Installation .....................................1109
DTC P2127, P2128 APP SENSOR ................1110
Component Description .......................................1110
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1110
On Board Diagnosis Logic ..................................1110
DTC Confirmation Procedure ..............................1110
Wiring Diagram ...................................................1111
Diagnosis Procedure ...........................................1112
Component Inspection ........................................1115
Removal and Installation .....................................1115
DTC P2135 TP SENSOR ...............................1116
Component Description .......................................1116
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1116
On Board Diagnosis Logic ..................................1116
DTC Confirmation Procedure ..............................1116
Wiring Diagram ...................................................1117
Diagnosis Procedure ...........................................1118
Component Inspection ........................................1120
Removal and Installation .....................................1121
DTC P2138 APP SENSOR .............................1122
Component Description .......................................1122
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1122
On Board Diagnosis Logic ..................................1122
DTC Confirmation Procedure ..............................1123
Wiring Diagram ...................................................1124
Diagnosis Procedure ...........................................1125
Component Inspection ........................................1128
Removal and Installation .....................................1128
DTC P2A00, P2A03 A/F SENSOR 1 ..............1129
Component Description .......................................1129
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1129
On Board Diagnosis Logic ..................................1129
DTC Confirmation Procedure ..............................1129
Wiring Diagram ...................................................1131
Diagnosis Procedure ...........................................1134
Removal and Installation .....................................1138
ASCD BRAKE SWITCH .................................1139
Component Description .......................................1139
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1139
Wiring Diagram ....................................................1140
Diagnosis Procedure ...........................................1141
Component Inspection .........................................1142
ASCD INDICATOR .........................................1144
Component Description .......................................1144
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1144
Wiring Diagram ....................................................1145
Diagnosis Procedure ...........................................1145
ELECTRICAL LOAD SIGNAL .......................1147
Description ...........................................................1147
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1147
Diagnosis Procedure ...........................................1147
FUEL INJECTOR ...........................................1149
Component Description .......................................1149
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1149
Wiring Diagram ....................................................1150
Diagnosis Procedure ...........................................1151
Component Inspection .........................................1154
Removal and Installation .....................................1154
FUEL PUMP ...................................................1155
Description ...........................................................1155
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1155
Wiring Diagram ....................................................1156
Diagnosis Procedure ...........................................1157
Component Inspection .........................................1159
Removal and Installation .....................................1159
ICC BRAKE SWITCH .....................................1160
Component Description .......................................1160
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1160
Wiring Diagram ....................................................1161
Diagnosis Procedure ...........................................1162
Component Inspection .........................................1164
IGNITION SIGNAL .........................................1166
Component Description .......................................1166
Wiring Diagram ....................................................1167
Diagnosis Procedure ...........................................1172
Component Inspection .........................................1175
Removal and Installation .....................................1176
REFRIGERANT PRESSURE SENSOR .........1177
Component Description .......................................1177
Wiring Diagram ....................................................1178
Diagnosis Procedure ...........................................1179
Removal and Installation .....................................1181
SNOW MODE SWITCH ..................................1182
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EC-16
Description ...........................................................1182
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1182
Wiring Diagram ....................................................1183
Diagnosis Procedure ...........................................1183
Component Inspection .........................................1185
VARIABLE INDUCTION AIR CONTROL SYS-
TEM (VIAS) .....................................................
1187
Description ...........................................................1187
CONSULT-III Reference Va lue in Data Monitor
Mode ....................................................................
1188
Wiring Diagram ....................................................1189
Diagnosis Procedure ...........................................1190
Component Inspection .........................................1193
Removal and Installation .....................................1193
MIL AND DATA LINK CONNECTOR .............1194
Wiring Diagram ....................................................1194
SERVICE DATA AND SPECIFICATIONS
(SDS) ..............................................................
1196
Fuel Pressure .......................................................1196
Idle Speed and Ignition Timing ............................1196
Calculated Load Value .........................................1196
Mass Air Flow Sensor ..........................................1196
Intake Air Temperature Sensor ............................1196
Engine Coolant Temperature Sensor ..................1196
Fuel Tank Temperature Sensor ...........................1196
Crankshaft Position Sensor (POS) ......................1197
Camshaft Position Sensor (PHASE) ....................1197
A/F Sensor 1 Heater ............................................1197
Heated Oxygen sensor 2 Heater .........................1197
Throttle Control Motor ..........................................1197
Fuel Injector .........................................................1197
Fuel Pump ............................................................1197
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PREPARATIONEC-29
< SERVICE INFORMATION > [VQ35DE]
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PREPARATION
Special Service ToolINFOID:0000000001325893
The actual shapes of Kent-Moore t
ools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
KV10117100
(J-36471-A)
Heated oxygen sensor
wrench Loosening or tightening heated oxygen sensor
with 22 mm (0.87 in) hexagon nut
KV10114400
(J-38365)
Heated oxygen sensor
wrench Loosening or tightening air fuel ratio (A/F) sensor
a: 22 mm (0.87 in)
(J-44321)
Fuel pressure gauge
kit Checking fuel pressure
(J-44321-6)
Fuel pressure adapter Connecting fuel pressure gauge to quick connec-
tor type fuel lines.
(J-44626)
Air fuel ratio (A/F)
sensor wrench Loosening or tightening air fuel ratio (A/F) sensor 1
(J-45488)
Quick connector re-
lease Remove fuel tube quick connectors in engine
room.
S-NT379
S-NT636
LEC642
LBIA0376E
LEM054
PBIC0198E
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