1994 Cadillac El Dorado code p046

1994 CADILLAC ELDORADO
133,000 MILES • V8 • FWD • AUTOMATIC
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STAN_DEC
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what is most likely cause? seems to be slightly missing on 3rd cyl. i replaced coil, injector, and fuel pressure regulator, also fuel filter. sets code p046 fuel imbalance left and right bank. can't find any vaccum leaks. where should i go from here?
Sep 10, 2009 at 1:27 PM
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DOCFIXIT
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Hi Could be exhaust leak or O2 fault. Follow diagnostic chart see if it leads to fault. Let me know Thanks for donate


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Sep 10, 2009 at 3:10 PM