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What could be causing misfire and too much fuel

I have a 2000 chevy 1500 that is coming up with multiple misfire codes and getting too much gas...replaced plugs, coil, rotor, distributor cap, air filter and fuel filter..it runs rough and sputters

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Hi Jon:
Sometimes these engines do too much thinking. If this engine has an oxygen sensor and an engine coolant temperature sensor, it's possible considering its age, that one or both have failed and are trying to tell the engine that it needs a richer mixture.

Posted on Apr 02, 2015

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