Possible throttle body issue

Discussion in 'Mazdaspeed 3/6 Engine' started by Wrestler216, Mar 7, 2021.

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  1. Wrestler216

    Wrestler216 Greenie Member

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    Koeo throttle position just reads 0 no matter what. At idle though it will open to 60%
     
    Wrestler216, via a mobile device, Mar 23, 2021
    #21
  2. Wrestler216

    Wrestler216 Greenie Member

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    I've been busy and haven't been able to do anything with the car recently. I'm going to get a datalog up up tonight if you wouldn't mind looking at it.

    Would a 2nd gear pull be enough? And are there any specific things I should log without just logging everything so it's not too cluttered.
     
    Wrestler216, via a mobile device, Apr 6, 2021
    #22
  3. Awafrican

    Awafrican Moderator Gold Member

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    Idle and second would be a start too look at things sure.

    Log these:
    Accelerator pedal position,
    AFR
    Boost
    Boost air temp
    Calculated load
    HPFP actual
    Injector duty cycle %
    Intake temp
    Intake valve adv
    Knock Retard
    LTFT
    Maf Voltage
    Mass Airflow
    RPM
    STFT
    Spark Advance
    Throttle Position
    Vehice Speed
    WGDC
     
    Awafrican, via a mobile device, Apr 6, 2021
    #23
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  4. Wrestler216

    Wrestler216 Greenie Member

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    The idle log was done after letting the car warm-up for a few minutes and then the pull right after. My current mods are Autotech hpfp internals, jbr SRI/TIP, and a custom CBE with a Magnaflow straight-through muffler. Currently on the stock tune as well. I get an on and off p2006 code usually when it's cold for VTCS stuck closed but have for a while and never had issues. The shop I went to also said I had p0101 stored but the cel was off at the time. I had this before with a cel and replaced the MAF sensor because of it but it changed nothing.
     

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  5. limesta

    limesta Greenie N00B Member

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    Bump! I'm experiencing the same issues, and symptoms
    I have replaced the throttle body, checked and cleaned all the grounds, and my TB will only open at WOT to about 30-50% with some variation.
    the new TB was cleaned prior to install.
     
  6. Awafrican

    Awafrican Moderator Gold Member

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    given that its almost 2 years since last post in this thread please make your own thread in this section: https://mazdaspeeds.org/index.php?forums/mazdaspeed-3-troubleshooting.106/
    using this format give us all the info in the thread: https://mazdaspeeds.org/index.php?threads/troubleshooting-sheet.13117/
     
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  7. Natems3pa

    Natems3pa Greenie N00B Member

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    Map targets or dbw throttle targets seems to clear this up for me when I turn cars up. Years later but I too had this problem. went through my spare parts and nothing changed till I got into those tables. I also ruined a throttle body by moving it when it was off. No idea why its just my luck I guess.
     
    Natems3pa, via a mobile device, Jun 30, 2023
    #27
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