13 Pete 388 showing two codes on dash, Data Link not responding

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by JNelson1214, Jan 21, 2019.

  1. JNelson1214

    JNelson1214 Bobtail Member

    15
    1
    Jan 21, 2019
    0
    Ok update... so dealership thinks I have a bad ECM? Yesterday the truck started losing power would go above 55 but then would kick in and go but that is a symptom of the EGr Valve which the screen on my truck is showing a leaking EGR Valve. I don’t have any symptoms of a bad ECM that I can tell... thoughts.
     
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