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 Check the Evaporative system
fuel in carbon canister, under TESTING PROCEDURES.
fuel tank vent system blocked,
poor seal on gas cap



PCV valve plugged or stuck Check the PCV system under
[1][2]PCV hose blocked or plugged TESTING PROCEDURES.



Contaminated catalyst Check for missing or worn
fuel fillpipe restrictor.
Check Air/Fuel ratio



Excessive Emissions Refer to High Emission Levels
in DIAGNOSIS BY SYMPTOM.



Leaking Fuel Line Perform visual inspection of fuel lines and connections.