sensor NISSAN 350Z 2007 Z33 Engine Control Workshop Manual

EC-464
DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
Revision: 2006 November2007 350Z
Component InspectionNBS0009N
EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.
2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM
terminal 102 and ground under the following conditions.
CAUTION:

Always calibrate the vacuum pump gauge when using it.

Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or
pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
4. If NG, replace EVAP control system pressure sensor.
Applied vacuum kPa
(mmHg, inHg)Voltage V
Not applied 1.8 - 4.8
-26.7 (-200, -7.87) 2.1 to 2.5V lower than above value
PBIB3573E

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-465
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Revision: 2006 November2007 350Z
DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSORPFP:25085
Component DescriptionNBS0009O
The EVAP control system pressure sensor detects pressure in the purge line. The sensor output voltage to the
ECM increases as pressure increases.
CONSULT-III Reference Value in Data Monitor ModeNBS0009P
Specification data are reference values.
PBIB1086E
PBIB1207E
MONITOR ITEM CONDITION SPECIFICATION
EVAP SYS PRES

Ignition switch: ON Approx. 1.8 - 4.8V

EC-466
DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
Revision: 2006 November2007 350Z
On Board Diagnosis LogicNBS0009Q
DTC Confirmation ProcedureNBS0009R
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Always perform test at a temperature of 5°C (41°F) or more.
WITH CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Select “DATA MONITOR” mode with CONSULT-III.
5. Make sure that “FUEL T/TEMP SE” is more than 0°C (32°F).
6. Start engine and wait at least 20 seconds.
7. Check 1st trip DTC.
8. If 1st trip DTC is detected, go to EC-469, "
Diagnostic Procedure" .
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Check that voltage between ECM terminal 106 (Fuel tank tem-
perature sensor signal) and ground is less than 4.2V.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and wait at least 20 seconds.
5. Select Service $07 with GST.
If 1st trip DTC is detected, go to EC-469, "
Diagnostic Procedure"
.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0453
0453EVAP control system
pressure sensor high
inputAn excessively high voltage from the sensor is
sent to ECM.

Harness or connectors
(EVAP control system pressure sensor
circuit is shorted.)
[CKP sensor (POS) circuit is shorted.]
[CMP sensor (PHASE) (bank 2) circuit is
shorted.]
[EVT control position sensor (bank 2) cir-
cuit is shorted.]
(APP sensor 2 circuit is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)

EVAP control system pressure sensor

Crankshaft position sensor (POS)

Camshaft position sensor (PHASE)
(bank 2)

Exhaust valve timing control position
sensor (bank 2)

Accelerator pedal position sensor

Refrigerant pressure sensor

EVAP canister vent control valve

EVAP canister

Rubber hose from EVAP canister vent
control valve to vehicle frame
PBIB3574E

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
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Revision: 2006 November2007 350Z
Wiring DiagramNBS0009S
TBWT1650E

EC-468
DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
Revision: 2006 November2007 350Z
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
46 R/BSensor power supply
[Crankshaft position sensor
(POS)][Ignition switch: ON]5V
64 W/GSensor power supply
[Camshaft position sensor
(PHASE) (bank 2), Exhaust
valve timing control position
sensor (bank 2)][Ignition switch: ON]5V
102 LGEVAP control system pres-
sure sensor[Ignition switch: ON]1.8 - 4.8V
103 GSensor power supply
(Accelerator pedal position
sensor 2)[Ignition switch: ON]5V
107 BRSensor power supply
(EVAP control system pres-
sure sensor)[Ignition switch: ON]5V
111 O RSensor power supply
(Refrigerant pressure sen-
sor)[Ignition switch: ON]5V
11 2 P USensor ground
(EVAP control system pres-
sure sensor)[Engine is running]

Warm-up condition

Idle speed0V

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-469
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Diagnostic ProcedureNBS0009T
1. CHECK GROUND CONNECTIONS
Models with VDC system, navigation system or telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
Models without VDC system, navigation system and telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
1. Body ground E17 2. Body ground E43 3. Body ground B102
:Vehicle front
1. Body ground E17 2. Body ground E43 3. Body ground F152
(Passenger side view with dash side
finisher removed)
:Vehicle front
PBIB3560E
PBIB3561E

EC-470
DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
Revision: 2006 November2007 350Z
2. CHECK CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check sensor harness connector for water.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness connector.
3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-I
1. Turn ignition switch ON.
2. Check voltage between EVAP control system pressure sensor
terminal 3 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 4.
4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between EVAP control system pressure sensor terminal 3 and ECM terminal
107. Refer to Wiring Diagram.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.
1. Harness connectors T2, B44
2. Harness connectors B1, M12
3. Harness for open between ECM and EVAP control system pressure sensor.
>> Repair open circuit. Water should not exist.
PBIB1086E
Voltage: Approximately 5V
PBIB0138E
Continuity should exist.

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
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6. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-III
Check harness for short to power and short to ground, between the following terminals.
OK or NG
OK >> GO TO 7.
NG >> Repair short to ground or short to power in harness or connectors.
7. CHECK COMPONENTS
Check the following.

Crankshaft position sensor (POS) (Refer to EC-393, "Component Inspection" .)

Camshaft position sensor (PHASE) (bank 2) (Refer to EC-405, "Component Inspection" .)

Exhaust valve timing control position sensor (bank 2) (Refer to EC-539, "Component Inspection" .)

Refrigerant pressure sensor (Refer to AT C - 8 0 , "COMPONENT INSPECTION" .
OK or NG
OK >> GO TO 8.
NG >> Replace malfunctioning component.
8. CHECK APP SENSOR
Refer to EC-648, "
Component Inspection" .
OK or NG
OK >> GO TO 20.
NG >> GO TO 9.
9. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-77, "
Accelerator Pedal Released Position Learning" .
3. Perform EC-77, "
Throttle Valve Closed Position Learning" .
4. Perform EC-77, "
Idle Air Volume Learning" .
>>INSPECTION END
ECM terminal Sensor terminal Reference Wiring Diagram
46 CKP sensor (POS) terminal 1EC-388
64CMP sensor (PHASE) (bank 2) terminal 1EC-399EVT control position sensor (bank 2) terminal 1EC-532
103 APP sensor terminal 4EC-643
107 EVAP control system pressure sensor terminal 3EC-458
111 Refrigerant pressure sensor 1EC-711

EC-472
DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
Revision: 2006 November2007 350Z
10. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between EVAP control system pressure sensor terminal 1 and ECM terminal
112. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
11 . DETECT MALFUNCTIONING PART
Check the following.

Harness connectors T2, B44

Harness connectors B1, M12

Harness for open or short between EVAP control system pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
12. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN
AND SHORT
1. Check harness continuity between ECM terminal 102 and EVAP control system pressure sensor terminal
2. Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors T2, B44

Harness connectors B1, M12

Harness for open or short between EVAP control system pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
14. CHECK RUBBER TUBE
1. Disconnect rubber tube connected to EVAP canister vent control valve.
2. Check the rubber tube for clogging, vent and kinked.
OK or NG
OK >> GO TO 15.
NG >> Clean the rubber tube using an air blower.Continuity should exist.
Continuity should exist.

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
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15. CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to EC-442, "
Component Inspection" .
OK or NG
OK >> GO TO 16.
NG >> Replace EVAP canister vent control valve.
16. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-474, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> Replace EVAP control system pressure sensor.
17. CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2. Does water drain from the EVAP canister?
Ye s o r N o
Ye s > > G O T O 1 8 .
No >> GO TO 20.
18. CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 2.2 kg (4.9 lb).
OK or NG
OK >> GO TO 20.
NG >> GO TO 19.
19. DETECT MALFUNCTIONING PART
Check the following.

EVAP canister for damage

EVAP hose between EVAP canister and vehicle frame for clogging or poor connection
>> Repair hose or replace EVAP canister.
20. CHECK INTERMITTENT INCIDENT
Refer to EC-141, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
PBIB1031E