1998-2002 ALL INFINITI MODELS; DTC 1491 (VACUUM CUT VALVE BYPASS VALVE) DIAGNOSIS
This bulletin is an aid to the diagnostic procedures in the Service Manual for DTC P1491.
1996 AND UP ALL INFINITI MODELS; EVAP VENT CONTROL VALVE DIAGNOSTICS
If an applied vehicle has one (or more) of the following DTCs stored in Self Diagnosis, use the Service Procedure below to check the operation of the EVAP vent control valve.