2001 INFINITI QX4 Ignition harness

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Page 1073 of 2395

INFINITI QX4 2001  Factory Service Manual 18 CHECK ABSOLUTE PRESSURE SENSOR
1. Remove absolute pressure sensor with its harness connector connected.
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2. Remove hose from absolute pressure sensor.
3. Install a vacuum pump to absolute pr

Page 1074 of 2395

INFINITI QX4 2001  Factory Service Manual 20 CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected.
CAUTION:
INever apply force to the air hole protector of the sensor if

Page 1080 of 2395

INFINITI QX4 2001  Factory Service Manual Diagnostic ProcedureNBEC0325
1 CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect EVAP canister purge volume control solenoid v

Page 1082 of 2395

INFINITI QX4 2001  Factory Service Manual 6 CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected.
CAUTION:
INever apply force to the air hole protector of the sensor if e

Page 1083 of 2395

INFINITI QX4 2001  Factory Service Manual 7 CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-II
1. Turn ignition switch ªOFFº.
2. Reconnect harness connectors disconnected.
3. Start engine.
4. Perform ªPURG VOL CONT/Vº

Page 1085 of 2395

INFINITI QX4 2001  Factory Service Manual 11 CHECK EVAP CANISTER VENT CONTROL VALVE-II
With CONSULT-II
1. Reconnect harness connectors disconnected.
2. Turn ignition switch ªONº.
3. Perform ªVENT CONTROL/Vº in ªACTIVE TESTº mode.
4. Che

Page 1095 of 2395

INFINITI QX4 2001  Factory Service Manual 11 CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected.
CAUTION:
INever apply force to the air hole protector of the sensor if

Page 1104 of 2395

INFINITI QX4 2001  Factory Service Manual 13 CHECK EVAP CANISTER VENT CONTROL VALVE-II
With CONSULT-II
1. Reconnect harness connectors disconnected.
2. Turn ignition switch ªONº.
3. Perform ªVENT CONTROL/Vº in ªACTIVE TESTº mode.
4. Che