EVAP System Leak Test
| CAUTION | DO NOT apply more than.6 psi (.04 kg/cm 2 ) of pressure to EVAP system. DO NOT use compressed air. |
Note. DO NOT start engine during testing procedure.
- Using CONSULT-II Attach EVAP service port adapter securely to EVAP service port. Attach pressure pump and hose. Turn ignition on. Using CONSULT-II in WORK SUPPORT MODE select EVAP SYSTEM CLOSE. Touch START. A bar graph should appear, using pressure pump apply pressure until pressure indicator reaches middle of graph. Remove EVAP service port adapter along with pump. Locate leak using Leak Detector (J41416).
- Without CONSULT-II Connect suitable pressure pump with gauge to EVAP service port. See «VACUUM DIAGRAMS»(ref-135815) article for location. Using jumper wires, apply battery voltage to EVAP Canister Vent Control Valve (EVAP-CVCV) and vacuum cut valve by-pass valve. (Scheme 1)- (Scheme 7). Apply.2-.4 psi (.01-.03 kg/cm 2 ) of pressure to EVAP service port. Remove pressure pump from EVAP service port. Using Leak Detector (J41416), locate EVAP system leak.
Scheme 1
Scheme 2
Scheme 3
Scheme 4
Scheme 5
Scheme 6
Scheme 7
IDLE AIR CONTROL VALVE-FAST IDLE CONTROL DEVICE SYSTEM TEST
Note. Altima, I35, Maxima, Pathfinder, QX4 and Sentra are not equipped with idle air control valve-fast idle control device.
See also:
• WIRING DIAGRAMS