Question about 2003 Mazda MPV

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Code reader says #2 cylinder coil bad. Replaced coil and all the fuel injectors. engine still has the miss and loss of power. check engine still comes on and code reader still say #2 cylinder coil or injector problem. Have a friend with a Mazda tribute with the same problem

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Try swapping the defective coil and see if the fault moves with the coil, if not you have defective circuits to the coil....When the scanner tells you a story, its only half the story....It reads faults in an entire circuit and it will identify that circuit, but maybe not the exact problem....Regards Johngee10

Posted on Oct 16, 2010

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What the miss there before you started replacing parts or did you replace some of them as maintenance items. Like the plugs. Possible that the parts store gave you one with a crack in it??? Also how about a vacuum leak at the intake gasket. You said you have compression. Have you tried checking running compression. A broken valve spring can cause good cranking compression, but cause no compression when it's running.

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