2006 INFINITI FX35 oil pressure

EC-380
[VQ35DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2006 December 2006 FX35/FX45
5. CHECK FUEL INJECTOR
1. Stop engine and then turn ignition switch ON.
2. Check voltage between ECM terminals 21, 22, 23, 40, 41, 42 and ground with CONSULT-II or tester.
Refer to Wiring Diagram for fuel injector, EC-629, "
Wiring Dia-
gram" .
OK or NG
OK >> GO TO 6.
NG >> Perform EC-630, "
Diagnostic Procedure" .
6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Reconnect ECM harness connector disconnected.
3. Remove fuel pump fuse in IPDM E/R to release fuel pressure. NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
4. Start engine.
5. After engine stalls, crank it two or three times to release all fuel pressure.
6. Turn ignition switch OFF.
7. Remove all ignition coil harness connectors to avoid the electri- cal discharge from the ignition coils.
8. Remove ignition coil and spark plug of the cylinder to be checked.
9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm between the edge of the spark plug and grounded metal portion
as shown in the figure.
12. Crank engine for about 3 seconds, and check whether spark is generated between the spark plug and the grounded metal por-
tion.
CAUTION:

Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical discharge voltage
becomes 20kV or more.

It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
OK or NG
OK >> GO TO 10.
NG >> GO TO 7. Voltage: Battery voltage
PBIB2250E
Spark should be generated.
PBIB1603E
PBIB2325E

DTC P0448 EVAP CANISTER VENT CONTROL VALVE EC-419
[VQ35DE]
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Revision: 2006 December 2006 FX35/FX45
DTC P0448 EVAP CANISTER VENT CONTROL VALVEPFP:16935
Component DescriptionNBS003WP
The EVAP canister vent control valve is located on the EVAP canis-
ter and is used to seal the canister vent.
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal
the vent is necessary for the on board diagnosis of other evaporative
emission control system components.
This solenoid valve is used only for diagnosis, and usually remains
opened.
When the vent is closed, under normal purge conditions, the evapo-
rative emission control system is depressurized and allows EVAP
Control System diagnosis.
CONSULT-II Reference Value in Data Monitor ModeNBS003WQ
Specification data are reference values.
On Board Diagnosis LogicNBS003WR
PBIB1263E
PBIB1611E
MONITOR ITEM CONDITION SPECIFICATION
VENT CONT/V

Ignition switch: ON OFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0448
0448 EVAP canister vent con-
trol valve close EVAP canister vent control valve remains
closed under specified driving conditions.

EVAP canister vent control valve

EVAP control system pressure sensor
and the circuit

Blocked rubber tube to EVAP canister
vent control valve

EVAP canister is saturated with water

DTC P1217 ENGINE OVER TEMPERATURE EC-499
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Revision: 2006 December 2006 FX35/FX45
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-11, "
Changing Engine
Coolant" . Also, replace the engine oil. Refer to LU-9, "Changing Engine Oil" .
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to use coolant with the proper mixture ratio. Refer to MA-13, "
Anti-Freeze Coolant Mixture Ratio" .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckNBS003UK
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
WITH CONSULT-II
1. Check the coolant level in the reservoir tank and radiator. Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-503,
"PROCEDURE A" .
2. Confirm whether customer filled the coolant or not. If customer filled the coolant, skip the following steps and go to EC-503,
"PROCEDURE A" .
3. Turn ignition switch ON.
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON- SULT-II.
5. If the results are NG, go to EC-505, "
PROCEDURE B" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217 Engine over tempera-
ture (Overheat)

Cooling fan does not operate properly (Over-
heat).

Cooling fan system does not operate prop-
erly (Overheat).

Engine coolant level was not added to the
system using the proper filling method.

Engine coolant is not within the specified
range.

Harness or connectors
(Cooling fan circuit is open or shorted.)

IPDM E/R

Cooling fan

Radiator hose

Radiator

Radiator cap

Water pump

Thermostat
For more information, refer to EC-508,
"Main 12 Causes of Overheating" .
SEF621W
SEF646X

EC-660
[VQ35DE]
IGNITION SIGNAL
Revision: 2006 December 2006 FX35/FX45
Component InspectionNBS003ZC
IGNITION COIL WITH POWER TRANSISTOR
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as follows.
4. If NG, Replace ignition coil with power transistor. If OK, go to next step.
5. Turn ignition switch OFF.
6. Reconnect all harness connectors disconnected.
7. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
8. Start engine.
9. After engine stalls, crank it two or three times to release all fuel pressure.
10. Turn ignition switch OFF.
11. Remove ignition coil harness connectors to avoid the electrical discharge from the ignition coils.
12. Remove ignition coil and spark plug of the cylinder to be checked.
13. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
14. Connect spark plug and harness connector to ignition coil.
15. Fix ignition coil using a rope etc. with gap of 13 - 17 mm between the edge of the spark plug and grounded metal portion
as shown in the figure.
16. Crank engine for about 3 seconds, and check whether spark is generated between the spark plug and the grounded part.
CAUTION:

Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical discharge voltage
becomes 20kV or more.

It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm or less, the spark might be generated even if the coil is malfunc-
tioning.
17. If NG, Replace ignition coil with power transistor.
Terminal No. (Polarity) Resistance Ω [at 25 °C (77 °F)]
1 and 2 Except 0 or ∞
1 and 3 Except 0
2 and 3
Spark should be generated.
PBIB0847E
PBIB1603E
PBIB2325E

TROUBLE DIAGNOSIS EC-757
[VK45DE]
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Revision: 2006 December 2006 FX35/FX45
Symptom Matrix ChartNBS00420
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel pump circuit 11232 22 3 2 EC-1314
Fuel pressure regulator system334444444 4 EC-746
Fuel injector circuit 11232 22 2 EM-194
Evaporative emission system334444444 4 EC-699
Air Positive crankcase ventilation sys-
tem 33 4444444 41
EC-711
Incorrect idle speed adjustment 1 1 1 1 1 EC-737
Electric throttle control actuator 112332222 2 2 EC-1240,
EC-1252
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-737
Ignition circuit 11222 22 2EC-1328
Main power supply and ground circuit22333 33 23 EC-812
Mass air flow sensor circuit
1
12 2
222 2 EC-858,
EC-867
,
Engine coolant temperature sensor circuit
3 33
EC-879
,
EC-892
A/F sensor 1 circuit EC-900
,
EC-910
,
EC-919
,
EC-928
,
EC-1283
Throttle position sensor circuit
22 EC-885
,
EC-1008
,
EC-1183
,
EC-1185
,
EC-1268
Accelerator pedal position sensor circuit 3 2 1 EC-1149
,
EC-1254
,
EC-1261
,
EC-1275
Knock sensor circuit 2 3 EC-1025
Crankshaft position sensor (POS) circuit 2 2EC-1030
Camshaft position sensor (PHASE) circuit 3 2EC-1037
Vehicle speed signal circuit 2 3 3 3EC-1131
Power steering pressure sensor circuit 2 3 3EC-1137

EC-758
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
ECM 22333333333 EC-1142,
EC-1146
Intake valve timing control solenoid valve cir-
cuit 32 13223 3
EC-851
PNP switch circuit 3 3 3 3 3 EC-1154
Refrigerant pressure sensor circuit 2 3 3 4EC-1341
Electrical load signal circuit 3EC-1305
Air conditioner circuit 223333333 3 2AT C - 4 0
VIAS control solenoid valve circuit 1EC-1224
ABS actuator and electric unit (control unit) 4EC-1169
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank 5
5 FL-10
Fuel piping 5 5 5 5 5 5
EM-194
Vapor lock —
Valve deposit 5 555 55 5 —
Poor fuel (Heavy weight gaso-
line, Low octane) —

TROUBLE DIAGNOSIS EC-761
[VK45DE]
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Revision: 2006 December 2006 FX35/FX45
Engine Control Component Parts LocationNBS00421
1. IPDM E/R 2. ICC brake hold relay (ICC models only) 3. Refrigerant pressure sensor
4. Intake valve timing control position sensor (bank 2) 5. Intake valve timing control solenoid
valve (bank 2) 6. Electric throttle control actuator
7. Cooling fan motor 8. Intake valve timing control solenoid valve (bank 1) 9. Intake valve timing control position
sensor (bank 1)
10. Camshaft position sensor (PHASE) 11. Mass air flow sensor (with intake air temperature sensor) 12. Ignition coil (with power transistor)
and spark plug (bank 1)
13. Vacuum tank 14. VIAS control solenoid valve 15. Engine coolant temperature sensor
16. Fuel injector (bank 1) 17. Power valve actuator 18. Knock sensor (bank 1)
19. Knock sensor (bank 2) 20. Fuel injector (bank 2) 21. EVAP canister purge volume control solenoid valve
22. EVAP service port 23. Ignition coil (with power transistor) and spark plug (bank 2)
PBIB3224E

TROUBLE DIAGNOSIS - SPECIFICATION VALUE EC-805
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Revision: 2006 December 2006 FX35/FX45
5. CHANGE ENGINE OIL
1. Stop the engine.
2. Change engine oil. NOTE:
This symptom may occur when a large amount of gasoline is mixed with engine oil because of driving
conditions (such as when engine oil temperature does not rise enough since a journey distance is too
short during winter). The symptom will not be detected after changing engine oil or changing driving con-
dition.
>> INSPECTION END
6. CHECK FUEL PRESSURE
Check fuel pressure. (Refer to EC-746, "
Fuel Pressure Check" .)
OK or NG
OK >> GO TO 9.
NG (Fuel pressure is too high)>>Replace fuel pressure regulator, refer to EC-746, "
FUEL PRESSURE
CHECK" . GO TO 8.
NG (Fuel pressure is too low)>>GO TO 7.
7. DETECT MALFUNCTIONING PART
1. Check the following.
–Clogged and bent fuel hose and fuel tube
–Clogged fuel filter
–Fuel pump and its circuit (Refer to EC-1314, "FUEL PUMP" .)
2. If NG, repair or replace the malfunctioning part. (Refer to EC-746, "
FUEL PRESSURE CHECK" .)
If OK, replace fuel pressure regulator.
>> GO TO 8.
8. CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”
1. Start engine.
2. Select “A/F ALPHA-B1”, “A/F ALPHA-B2” in “DATA MONITOR (SPEC)” mode, and make sure that the each indication is within the SP value.
OK or NG
OK >> INSPECTION END
NG >> GO TO 9.
9. PERFORM POWER BALANCE TEST
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode.
2. Make sure that the each cylinder produces a momentary engine speed drop.
OK or NG
OK >> GO TO 12.
NG >> GO TO 10.
PBIB0133E