VARIOUS INFINITI MODELS; REVISED MAINTENANCE PROCEDURES
Starting with the 2002 model year, some vehicle maintenance procedures have been changed from similar procedures in past model years. The revisions have been integrated into the appropriate 2002 model year Service Manuals.
1997-2000 INFINITI QX4; FUEL INJECTOR CLEANING FOR VEHICLES WITH ROUGH IDLE, HESITATION OR MIL ON WITH DTC P0300-P0306 STORED
If after performing Service Manual diagnostic procedures for:
Rough idle,
Engine hesitation,
MIL On DTC P0300-P0306
Low-maintenance batteries used in Infiniti vehicles are not maintenance free and do require periodic inspection and servicing. This is particularly true in areas with hot climates or for vehicles with extended or extreme usage.
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.