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Thread: Please HELP, LMM ECM Issue

  1. #1
    New Member
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    Default Please HELP, LMM ECM Issue

    Im in desperate need of help, when installing my DSP5 switch I accidentally put the pins in 45 and 54 instead of 46 and 54. I cycled the switch and it started throwing a bunch of codes. Now my ECM is not communicating properly and a shop says its fried. By doing this did I fry my ECM or was it something on the tune? I just dont want to put in a new ECM and go to tune it and fry it again. As I was going through codes I noticed injector 5 balance rate was over a volt off the others and over a volt different than the last time i checked balance rates. I looked up Pin 45 to see where it goes and sure enough it is to injector 5. May I have also damaged my #5 injector?

  2. #2
    Lifetime Member killerbee's Avatar
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    If you reload a stock tune, you may have your answer.

    Also log your dsp voltage, as long as it is showing 5 values that make sense, you should be ok with another ecm.
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
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