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Thread: AFR' the same in all cells. Why?

  1. #1
    Tuner in Training
    Join Date
    Feb 2010
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    AFR' the same in all cells. Why?

    Hi,
    My Scanner was working fine and then out of the blue in the AFR Hist. all cells show the same AFR. (12.6) My AEM Wideband is working fine. I haven't changed anything. Any ideas?
    Thank you!
    Last edited by Zo6 4 Me; 07-17-2012 at 01:02 PM.

  2. #2
    Tuner
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    Jun 2012
    Location
    Grand Rapids, MI
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    How did you confirm the wideband is working properly? Are you saying that it reads differently in the table than it does in the histo?

    Jack
    -2000 C5

  3. #3
    Senior Tuner 5_Liter_Eater's Avatar
    Join Date
    Nov 2005
    Location
    Houston, TX
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    3,968
    Sounds like a wiring issue or a problem with the analog output of the AEM. Put a volt meter on it.
    Bill Winters

    Former owner/builder/tuner of the FarmVette
    Out of the LSx tuning game

  4. #4
    Tuner in Training
    Join Date
    Feb 2010
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    I went to check the wiring with a voltmeter and found one of
    Wire had slipped out of the green plug that plugs into the MPVI.
    Reinstalled and problem solved. Thank you for your help!