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Thread: Engine grounds

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  1. #1
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    I checked yesterday. Those two codes are normal for sd.
    Mad has to fail and report code or it won't revert.
    Maf fail hz has to be 0

  2. #2
    Join Date
    Jul 2008
    Location
    The Garage
    Posts
    1,330
    Got it. Next question:

    If the truck is in "limp mode", would it behave as I have described in my original post? I've heard of a bad knock sensor throwing the PCM into limp mode and causing a great deal of hesitation during acceleration. However, even if this is the case, the truck is not throwing knock sensor codes.

    ~ Forged engine of some type ~ Ball bearing turbo of an unconfirmed size ~ 4L8000 trans ~ Beefy fuel system ~

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