Having problems with your 1991 Chevrolet Camaro ?
My 91 305 willnot pass deq has high hydrocarbon level what can i do , does not seem to be as peppi at throttle response
A high hydrocarbon level would most likely be caused by a fuel delivery problem or a vacuum leak in the intake system causing the engine to run too lean, or a problem with the ignition timing not being timed correctly.
Repair Help & Product Troubleshooting for 1991 Chevrolet Camaro
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