2009 Speed3 Codes P2177, P2187, P2195

Discussion in 'Mazdaspeed 3 Troubleshooting' started by Brian R, Mar 16, 2021.

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  1. Brian R

    Brian R Greenie Member

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    Hey everyone I am getting three codes on my AP but the car is running fine no missfires or running rough I've cleared the codes and they come back again. Any ideas where I should start? I have small mods like Cobb intake, HKS BOV, HPFP internals and COBB off shelf tune. Thank you.
     
  2. Awafrican

    Awafrican Moderator Gold Member

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    Have you checked out the shop manual? It has all the diagnostic procedures in it for the error codes
    https://mazdaspeeds.org/index.php?forums/mazdapeed-owners-manuals.193/

    Clean that MAF sensor and ensure it's plugged in and facing the right way, check for leaks from intake to engine.
    What is your fuel pressure reading? Worth having a look into the PRV here's a good video.

    Also could be as simple as a bad primary O2 sensor if you do replace it only get NTK (OEM)
     
    Awafrican, via a mobile device, Mar 16, 2021
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