Question about 1990 Cadillac Deville

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My 1990 Deville sometimes idles rough and the mpg drops significantly, and doesn't accelerate well when this occurs. I was told it might be the helix pickup on the distributer. Does this sound right? I paid to have it put on a code reader, but no problem codes came up.

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Did you ever find the problem? I am having a similar problem

Posted on Dec 20, 2010

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