P2188

Discussion in 'Mazdaspeed 3 Troubleshooting' started by Jerome, Sep 6, 2020.

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  1. Jerome

    Jerome Greenie Member

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    So I get the p2188 code. System too rich at idle B1

    I have a new primary 02 sensor. Checked all vac lines and checked for any boost leaks. New purge valve and OEM MAF.
    STFT as pictured at idle is not where it should be (I don’t think) and my HPFP psi is too high. No accessories on or ac or heat.
     

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    Jerome, via an iPhone, Sep 6, 2020
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  2. Awafrican

    Awafrican Moderator Gold Member

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    Post an idle data log about 10 sec long
     
    Awafrican, via a mobile device, Sep 6, 2020
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  3. Jerome

    Jerome Greenie Member

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    I have one I will get it later on and post for you. Forgot to mention it is intermittent.
     
    Jerome, via an iPhone, Sep 6, 2020
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  4. Jerome

    Jerome Greenie Member

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    Hey sorry I have the log just didn’t get around to uploading yet. Will do after work once I get to the car. 6pm EST
     
    Jerome, via an iPhone, Sep 8, 2020
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  5. Jerome

    Jerome Greenie Member

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    I finally got the time to upload a log. I'm at the shop now(current time) with the car.
     

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  6. Raider

    Raider Administraider Administrator Platinum Member

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  7. Jerome

    Jerome Greenie Member

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    Jerome, via an iPhone, Sep 14, 2020
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  8. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    You have the maximum negative STFT "-22" Somewhere between the turbo and the throttle plate you have a leak. Your car is trying to correct this by pulling fuel but it can not keep up.

    https://www.revisionsrus.com/logs/1588

    Pre-turbo = + trims, air added or sucked in
    turbo to TP = - trims, air lost or pushed out
    post TP = + trims, air added or sucked in
     
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