Excessive Odors - Fuel, Emissions

Vehicle has excessive "rotten egg" smell. Raw fuel (gasoline) can be smelled. Excessive odors DO NOT necessarily indicate excessive emissions.

POSSIBLE CAUSE ACTION


Faulty purge valve, liquid Refer to
fuel in carbon canister, EMISSION CONTROL DEVICES/
fuel tank vent system blocked, DIAGNOSIS, TESTING AND
poor seal on gas cap INSPECTION PROCEDURES/
EVAPORATIVE EMISSION CONTROL(EVAP) SYSTEM.






PCV valve plugged or stuck Refer to
[1][2]PCV hose blocked or plugged EMISSION CONTROL DEVICES/DIAGNOSIS, TESTING AND INSPECTION PROCEDURES/POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM


Contaminated catalyst Check for missing or worn
fuel fillpipe restrictor