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95 mustang ms2 pnp tps problems

Discussion in 'EFI Tuning Questions and Engine Management' started by desertfords, Jun 21, 2015.

  1. desertfords

    Joined:
    Feb 14, 2011
    I'm running ms2 pnp from diyautotune and am at the first stage of install. It's on, powers up and car will start for a brief second but I'm not getting any change in position on the tps.
    I switched to the fox throttle body and tps and believe I have it wired correctly and am getting around 1v to the green wire but it does not change with position of throttle. Tried another new sensor and still nothing. Everything else seems to work correctly.
    Any ideas?
    Wired
    green to gray/white
    Black to gray/red
    Orange to brown/white
     
    desertfords, Jun 21, 2015
    #1

  2. desertfords

    Joined:
    Feb 14, 2011
    Update, all three wires have the same voltage to them, 1.10v and none change with movement of the sensor
     
    desertfords, Jun 21, 2015
    #2

  3. Matt Cramer

    Joined:
    Sep 29, 2006
    Check the VREF on the expansion connector on the back of the MSPNP - do you have 5 volts there?
     
    Matt Cramer, Jun 22, 2015
    #3

  4. desertfords

    Joined:
    Feb 14, 2011
    Yep, got it working last night. Had to run 5v from the expansion plug and a new ground. Now reads perfect and set the initial voltage and calibrated perfect. Thanks for the help.
     
    desertfords, Jun 22, 2015
    #4
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