98 Buick Regal GS Code P0303 Misfire HELP!

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09-17-2011, 05:55 PM

#21

Rawben

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I guess I can't edit my prior post. DH said he DID replace the ICM. So, all has been done above. Any other suggestions?

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09-17-2011, 08:53 PM

#22

Danthurs

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From time to time a bad ICM can cause a misfire on one cylinder.

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09-20-2011, 07:09 AM

#23

gojo83

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maybe the crank sensor is going out. just a thought.

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