missfire problem
08-05-2013, 09:36 PM
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missfire problem I got a 79 Malibu with a 5.3 it ..engine is a 04 ..new plugs new wires new intake gaskets ..plug in scanner no codes no miss fire codes ...car has a miss when idleing and under a load ...air fuel is were it should be ...what could it be ...also the computer is stand alone .no cats
