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 Evaporative system in
fuel in carbon canister, "Testing Procedures" in Emissions
fuel tank vent system blocked,
poor seal on gas cap



PCV valve plugged or stuck Check PCV system in "Testing
PCV hose blocked or plugged Procedures" in Emissions



Contaminated catalyst Check for missing or worn
fuel fillpipe restrictor




Excessive Emissions Refer to High Emission Levels
in "Diagnosis By Symptom" in Emissions