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2000 Cadillac DeVille Question: Riding Rough,misfiring 2 cyl and 6 cyl, Check Engine light



CLoney79, Westerville, OH, April 21, 2009, 16:59

Can some please help me solve this problem?
My plugs are running lean; white tipped as if its not getting enough fuel
I replace my back Coil pack where my cylinders are misfiring
I've switched my injectors that were misfiring
I also replaced my MAF sensor
My Fuel pressure meets specs
I'm out of ideas; please help?

2 Answers
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  • Answer #1

    Protech2989 April 22, 2009, 15:54

    As with any Engine running problems the basics need to be covered. Performing an Engine compression test to inspect engine condition should be considered. Performing a Fuel Pressure test and Volume should be considered to indicate a properly functioning fuel pump. You could have proper pressure readings on fuel gauge but not proper volume.

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  • Answer #2

    Visitor, August 20, 2010, 23:05

    change the spark plug

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