Thread: Po170 Po300 Po560 system too lean , random cylinder misfire and iac rpm idle higher

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  1. #1 Re: Po170 Po300 Po560 system too lean , random cylinder misfire and iac rpm idle high 
    genki
    genki is offline
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    Default 08-25-2013
    You spent $55 and $48 on 2 new parts but wanted to clean PCV valve instead of going to auto store and getting new one for only about $4?

    Welcome anyway what car, year, and engine size did you fix?
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  2. #2 Re: Po170 Po300 Po560 system too lean , random cylinder misfire and iac rpm idle high 
    mpiacc
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    Default 08-26-2013
    it wasnt old, just dirty..
    99 grand prix gt, 3800 , 60k
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