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Thread: Cant turn off code p0403

  1. 06-21-2016 #1
    squetman
    squetman is offline
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    Apr 2015
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    Cant turn off code p0403

    im getting this egr code i have egr disabled but there is no p0403 in my file to turn off it skips that code in the list, its a 2002 2500 silverado 6.0 thanks in advance
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  2. 06-22-2016 #2
    grygst72
    grygst72 is offline
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    Jun 2016
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    Fort myers, FL
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    look for these codes to cover the EGR.it HAS to be in the list if its setting off. All of these are tied to the EGR so shut them all off if you removed your egr. Also remove the fuse for the circuit so it doesn't try and turn itself on as well.
    P0401 EGR System Flow Insufficient.
    P0403 EGR Solenoid Control Circuit.
    P0404 EGR Open Position Performance.
    P0405 EGR Position Sensor Circuit Low Voltage.
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