2001 INFINITI QX4 Ac system

[x] Cancel search: Ac system

Page 1094 of 2395

INFINITI QX4 2001  Factory Service Manual 10 CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
SEF495R
2. Check connectors for water.
Water should not exist.
OK or NG
OK©

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 1096 of 2395

INFINITI QX4 2001  Factory Service Manual System DescriptionNBEC0333NOTE:
If DTC P1447 is displayed with P0510, perform trouble diagnosis for DTC P0510 first. (See EC-431.)
SEF373Z
In this evaporative emission (EVAP) control system, purge flo

Page 1097 of 2395

INFINITI QX4 2001  Factory Service Manual IEVAP canister vent control valve
SEF207Y
SEF208Y
SEF238Y
DTC Confirmation ProcedureNBEC0335CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDTC Confirmation Procedureº has been previously c

Page 1098 of 2395

INFINITI QX4 2001  Factory Service Manual SEF355X
Overall Function CheckNBEC0336Use this procedure to check the overall monitoring function of the
EVAP control system purge flow monitoring. During this check, a
1st trip DTC might not be confi

Page 1099 of 2395

INFINITI QX4 2001  Factory Service Manual Diagnostic Procedure=NBEC0337
1 CHECK EVAP CANISTER
1. Turn ignition switch ªOFFº.
2. Check EVAP canister for cracks.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©R

Page 1100 of 2395

INFINITI QX4 2001  Factory Service Manual 3 CHECK PURGE FLOW
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid

Page 1101 of 2395

INFINITI QX4 2001  Factory Service Manual 5 CHECK EVAP PURGE HOSE AND PURGE PORT
1. Disconnect purge hoses connected to EVAP service portAand EVAP canister purge volume control solenoid valveB.
SEF367U
2. Blow air into each hose and EVAP purg