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Thread: PO138 code

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    Member MS3Edge's Avatar
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    Default PO138 code

    Ok i have searched and haven't really found an answer to this. i have started getting the code PO138. it only happened since i pulled the stock DP out and replaced it with the Corksport catted DP. SO 2 questions (And i am getting nervous about posting questions these days) 1) if anyone knows what this issue is relating to. what i have read it 3 possible things either to much fuel, bad O2, and one other but can't remember. Now the car is a 2013 so i think it could be a fuel issue maybe to much like running rich and maybe when i get it tuned this issue will go away. the second question is this something i can live with as it seems to be ok once i have the car warmed up i can clear the codes and it doesnt come back. just looking to see if any other speed guys have run into the same issue.


    IMG-20140516-00040.jpg

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    bitch flakes....yummy greyseason's Avatar
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    Default Re: PO138 code

    I know you dont feel like asking questions, but i literally typed in 'P0138 mazdaspeedforums' and got this

    P0138 - Did anyone have problems with CS Catted downpipe?
    Skyactiv Powa

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    Default Re: PO138 code

    Oh see I typed that in tm3 and got only 2 results which were not that helpful. Thanks I will read that one

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    Default Re: PO138 code

    Quote Originally Posted by steve.edgerton42 View Post
    Oh see I typed that in tm3 and got only 2 results which were not that helpful. Thanks I will read that one
    glad i could help!
    I just typed it in google

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    Default Re: PO138 code

    Hopefully it will help as my issue is sporadic. It was doing it this morning but now its fine strange well reading material for tonight I guess lol. Cheers

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