Thread: po300 code

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  1. #1 po300 code 
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    I have a 1999 gtp grand prix that is throwing up a po300 code I have replaced the coil packs and spark plugs and wires. Anybody have any advice?
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  2. #2 Re: po300 code 
    Turbo is the way to go. BillBoost37's Avatar
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    Try the ICM... Odd as ti sounds, I've seen them do it.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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