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1998 Chevrolet 1500 Pickup Question: ignition timing question



, Union, KY, June 22, 2011, 23:01

On my scan tool when I view the data stream, the ignition timing reads anywhere from 20 - 25 degrees advanced all the time. Is this correct and should it fluctuate like this. I figured it should be as close to zero as possible on a stock engine

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  • Answer #1

    June 27, 2011, 21:08

    It wouldn't run hardly at all at zero degrees advance. What you see is probably completely normal. Don't make assumptions, especially don't act on them with cars. Unless there's an obvious timing problem, don't mess with it.

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