getting fuel trim bank 1 trouble code

2000 MITSUBISHI ECLIPSE
181,796 MILES
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ECLIPSE2000GS
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My car keeps giving me a code that says fuel trim bank 1 and i dont know what to do I changed my spark plugs because I heard that could have been a problem please help it dont fill like it misfireing and its at 1000 rpms what should i do
Oct 7, 2011 at 3:09 AM
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ASEMASTER6371
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trim codes indicate the engine either running rich or lean, depending on the code. many possibilities including vacuum leaks, mass air flow sensor, fuel pressure issue and pcv valve.
anyway, i would not guess at this as guessing is expensive and usually wrong. it would be cheaper to have it diaged correctly and then decide to fix it yourself or have a shop do it.

Roy
Oct 7, 2011 at 3:14 AM