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Serving San Antonio, Texas and the surrounding areas since 1978.

Failures - (Excess Fuel Entering Exhaust)

Failures

Failures - Catalytic Converters Excess Fuel Entering Exhaust

The fuel that powers your vehicle is meant to burn in the combustion chamber only. Any fuel that leaves the combustion chamber unburned will enter the exhaust system and light-off when it reaches the catalytic converter. 

Failures - (Excess Fuel Entering Exhaust)


Failures - (Excess Fuel Entering Exhaust)

This can super-heat the converter far above normal operating conditions and cause a meltdown. Possible causes are an incorrect fuel mixture, incorrect timing, corroded spark plugs, a faulty oxygen sensor, sticking float, faulty fuel injector or a malfunctioning check valve.