Cat 3406e wont come off idle rpm

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Boxler, Mar 23, 2019.

  1. Poor boy

    Poor boy Bobtail Member

    49
    43
    Feb 10, 2011
    Kansas
    0
    I agree on bad ecm. I think there is a good chance that is your problem. Do you have another ecm available? Easy to swap ecm from a different truck on.
     
    Oxbow Thanks this.
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