2001 NISSAN ALMERA o2 sensor

Fuel Pressure RegulatorNJEC0467
Fuel pressure at idling
kPa (bar, kg/cm2, psi)Vacuum hose is connected Approximately 235 (2.35, 2.4, 34)
Vacuum hose is disconnected Approximately 294 (2.94, 3.0, 43)
Idle Speed and Ignition TimingNJEC0468
Target idle speed* rpmM/T: 700±50
A/T: 800±50
Air conditioner: ON rpm825 or more
Ignition timingM/T: 8±5É BTDC
A/T: 10±5É BTDC
Throttle position sensor idle position V 0.15 - 0.85
*: Under the following conditions:
+Air conditioner switch: OFF
+Electrical load: OFF (Lights, heater fan & rear window defogger)
+Steering wheel: Kept in straight-ahead position
Mass Air Flow SensorNJEC0470
Supply voltage (Heater) VBattery voltage (11 - 14)
Supply voltage (Sensor) VApproximately 5
Output voltage V1.0 - 1.7*
Mass air flow
(Using CONSULT-II or GST) g´m/sec1.0 - 4.0 at idle*
5.0 - 10.0 at 2,500 rpm*
*: Engine is warmed up to normal operating temperature and idling under no-load.
Intake Air Temperature SensorNJEC0480
Temperature ÉC (ÉF) Resistance kW
20 (68) 2.1 - 2.9
80 (176) 0.27 - 0.38
Engine Coolant Temperature SensorNJEC0471
Temperature ÉC (ÉF) Resistance kW
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Throttle Position SensorNJEC0477
Throttle valve conditions Voltage (V)
Completely closed0.15 - 0.85
Completely open3.5 - 4.7
Heated Oxygen Sensor 1 Heater (Front)NJEC0478
Resistance [at 25ÉC (77ÉF)]W2.3 - 4.3
Heated Oxygen Sensor 2 Heater (Rear)NJEC0483
Resistance [at 25ÉC (77ÉF)]W2.3 - 4.3
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Fuel Pressure Regulator
EC-593

Fuel Tank Temperature Sensor (Where Fitted)NJEC0485
Temperature ÉC (ÉF) Resistance kW
20 (68) 2.3 - 2.7
50 (122) 0.79 - 0.90
EGR Volume Control Valve (Where Fitted)NJEC0560
Terminal No. ResistanceW[at 20ÉC (68ÉF)]
1-2
20-24 2-3
4-5
5-6
EGR Temperature Sensor (Where Fitted)NJEC0472
EGR temperature
ÉC (ÉF)Voltage
VResistance
MW
0 (32) 4.56 0.62 - 1.05
50 (122) 2.25 0.065 - 0.094
100 (212) 0.59 0.011 - 0.015
EVAP Canister Purge Volume Control ValveNJEC0481
Resistance [at 20ÉC (68ÉF)]W31-35
IACV-AAC ValveNJEC0474
Terminal No. ResistanceW[at 20ÉC (68ÉF)]
1-2
20-24 2-3
4-5
5-6
InjectorNJEC0475
Resistance [at 25ÉC (77ÉF)]W13.5 - 17.5
Ignition Coil with Power TransistorNJEC0561
Terminal No. (Polarity) ResistanceW[at 25ÉC (77ÉF)]
3 (+) - 2 (þ) Except 0 or¥
1 (+) - 3 (þ)
Except 0
1 (+) - 2 (þ)
CondenserNJEC0587
Resistance [at 25ÉC (77ÉF)] MWAbove 1
Fuel PumpNJEC0473
Resistance [at 25ÉC (77ÉF)]W0.2 - 5.0
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Fuel Tank Temperature Sensor (Where Fitted)
EC-594

Crankshaft Position Sensor (POS)NJEC0558Refer to ªComponent Inspectionº, EC-334.
Camshaft Position Sensor (PHASE)NJEC0559Refer to ªComponent Inspectionº, EC-342.
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Crankshaft Position Sensor (POS)
EC-595

Alphabetical & P No. Index for DTCNJEC0600ALPHABETICAL INDEX FOR DTCNJEC0600S01X: Applicable Ð: Not applicable
Items
(CONSULT-II screen terms)DTC
MI illumination Reference page
CONSULT-II ECM
ACCEL POS SENSOR P0120 0403 X EC-685
BATTERY VOLTAGE P1660 0502 Ð EC-801
BRAKE SW P0571 0807 X EC-706
COOLANT TEMP SEN P0115 0103 X EC-680
CRANK POS SEN (TDC) P0335 0407 X EC-695
ECM RLY P1620 0902 X EC-794
ECM 2 P1607 0301 X EC-792
ECM 10 P1107 0802 X EC-714
ECM 12 P1603 0901 X EC-792
ECM 15 P1621 0903 Ð EC-799
FUEL CUT SYSTEM2 P1202 1002 X EC-723
MASS AIR FLOW SEN P0100 0102 X EC-673
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0505ÐÐ
OVER HEAT P1217 0208 X EC-730
P1´CAM POS SEN P1341 0701 X EC-778
P2´TDC PULSE SIG P1337 0702 X EC-771
P3´PUMP COMM LINE P1600 0703 X EC-785
P4´SPILL/V CIRC P1251 0704 X EC-764
P5´PUMP C/MODULE P1690 0705 X EC-803
P7´F/INJ TIMG FB P1241 0707 X EC-757
P9´FUEL TEMP SEN P1180 0402 X EC-716
VEHICLE SPEED SEN P0500 0104 X EC-701
TROUBLE DIAGNOSIS Ð INDEXYD
Alphabetical & P No. Index for DTC
EC-596

P NO. INDEX FOR DTC=NJEC0600S02X: Applicable Ð: Not applicable
DTC
MI illuminationItems
(CONSULT-II screen terms)Reference page
CONSULT-II ECM
P0000 0505ÐNO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.Ð
P0100 0102 X MASS AIR FLOW SEN EC-673
P0115 0103 X COOLANT TEMP SEN EC-680
P0120 0403 X ACCEL POS SENSOR EC-685
P0335 0407 X CRANK POS SEN (TDC) EC-695
P0500 0104 X VEHICLE SPEED SEN EC-701
P0571 0807 X BRAKE SW EC-706
P1107 0802 X ECM 10 EC-714
P1180 0402 X P9´FUEL TEMP SEN EC-716
P1202 1002 X FUEL CUT SYSTEM2 EC-723
P1217 0208 X OVER HEAT EC-730
P1241 0707 X P7´F/INJ TIMG FB EC-757
P1251 0704 X P4´SPILL/V CIRC EC-764
P1337 0702 X P2´TDC PULSE SIG EC-771
P1341 0701 X P1´CAM POS SEN EC-778
P1600 0703 X P3´PUMP COMM LINE EC-785
P1603 0901 X ECM 12 EC-792
P1607 0301 X ECM 2 EC-792
P1620 0902 X ECM RLY EC-794
P1621 0903 Ð ECM 15 EC-799
P1660 0502 Ð BATTERY VOLTAGE EC-801
P1690 0705 X P5´PUMP C/MODULE EC-803
TROUBLE DIAGNOSIS Ð INDEXYD
Alphabetical & P No. Index for DTC (Cont'd)
EC-597

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
NJEC0601The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to NISSAN MODEL N16 is as follows (The compo-
sition varies according to the destination and optional equipment.):
+For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
+For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
WARNING:
+To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.
+Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.
+Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harness can be identified by yellow harness connector.
PRECAUTIONSYD
Supplemental Restraint System (SRS) ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº
EC-598

System ChartNJEC0611
Input (Sensor) ECM Function Output (Actuator)
+Electronic control fuel injection pump
+Crankshaft position sensor (TDC)
+Engine coolant temperature sensor
+Accelerator position sensor
+Accelerator position switch
+Park/Neutral position (PNP) switch*
+Ignition switch
+Battery voltage
+Vehicle speed sensor
+Air conditioner switch
+Mass air flow sensor
+Stop lamp switchFuel injection controlElectronic control fuel injection
pump
Fuel injection timing controlElectronic control fuel injection
pump
Fuel cut controlElectronic control fuel injection
pump
Glow control system Glow relay & glow lamp
On board diagnostic system MI (On the instrument panel)
EGR volume control EGR volume control valve
Cooling fan control Cooling fan relay
Air conditioning cut control Air conditioner relay
*: If so equipped
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD
System Chart
EC-609

Fuel Injection Control System
DESCRIPTIONNJEC0612System DescriptionNJEC0612S01Three types of fuel injection control are provided to accommodate engine operating conditions; normal control,
idle control and start control. The ECM determines the appropriate fuel injection control. Under each control,
the amount of fuel injected is compensated to improve engine performance.
Pulse signals are exchanged between ECM and electronic control fuel injection pump (control unit is built-in).
The fuel injection pump control unit performs duty control on the spill valve (built into the fuel injection pump)
according to the input signals to compensate the amount of fuel injected to the preset value.
Start ControlNJEC0612S02Input/Output Signal ChartNJEC0612S0201
Sensor Input Signal to ECM ECM Function Actuator
Engine coolant temperature sensor Engine coolant temperature
Fuel injection
control (start
control)Electronic control fuel
injection pump Crankshaft position sensor (TDC) Engine speed
Ignition switch Start signal
SEF648S
When the ECM receives a start signal from the ignition switch, the ECM adapts the fuel injection system for
the start control. The amount of fuel injected at engine starting is a preset program value in the ECM. The
program is determined by the engine speed and engine coolant temperature.
For better startability under cool engine conditions, the lower the coolant temperature becomes, the greater
the amount of fuel injected. The ECM ends the start control when the engine speed reaches the specific value,
and shifts the control to the normal or idle control.
Idle ControlNJEC0612S03Input/Output Signal ChartNJEC0612S0301
Sensor Input Signal to ECM ECM Function Actuator
Engine coolant temperature sensor Engine coolant temperature
Fuel injection
control (Idle con-
trol)Electronic control fuel
injection pump Crankshaft position sensor (TDC) Engine speed
Battery Battery voltage
Accelerator position switch Idle position
Vehicle speed sensor Vehicle speed
Air conditioner switch Air conditioner signal
When the ECM determines that the engine speed is at idle, the fuel injection system is adapted for the idle
control. The ECM regulates the amount of fuel injected corresponding to changes in load applied to the engine
to keep engine speed constant. The ECM also provides the system with a fast idle control in response to the
engine coolant temperature signal.
ENGINE AND EMISSION BASIC CONTROL SYSTEM DESCRIPTIONYD
Fuel Injection Control System
EC-610