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  1. #1
    Huh? Dyoung's Avatar
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    TPS Reading on Seimens ECU

    I've noticed my 06 RXP w/ 08 electonics was down 300-400 RPMS so we started trouble shooting with the can-doo system. I'm only showing 80% throttle on the live monitoring even when the butterfly is wide open. We tried multiple throttle bodies, TPS sensors and two different ecu's with the same result. Most we saw was 84.7% and that was when I manually held the throttle body open as far as it would go. This actually confused me because the butterfly was open past dead center and was actually restricting more airflow. My question is,Does anybody know what their TB's are reading at wide open throttle with a Siemens ECU? Just trying to get a baseline here.

    Thanks,Damon


  2. #2
    Moderator beerdart's Avatar
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    Siemens reports angle and not percent like the Bosch. Idle angle is between 4-8 deg so WOT should be 86-82ish.

  3. #3
    Huh? Dyoung's Avatar
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    Thank you sir! my problem lies elsewhere then

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