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Thread: Is the ECM bricked? 2003

  1. #1
    Potential Tuner
    Join Date
    Jun 2021
    Posts
    7

    Is the ECM bricked? 2003

    Was in the middle of a flash and the computer fell asleep. Then I got a controller timed out message and now I can?t read or write anything to it. Wasn?t sure if there was anything I could try

  2. #2
    email support they can help but it will take a few days, my 03 did the same and they got it going
    2010 F-350 03 5.9/848ecm, built 5R110, 30% over sticks, 10mm pump, 64mm Stealth Turbo
    2008 F-350 03 5.9
    Fumminstuning.com

  3. #3
    Potential Tuner
    Join Date
    Jun 2021
    Posts
    7
    I left the battery charger on the truck disconnected from the obd port and shut the key off. Let it sit for 20 minutes and it full flashed!

  4. #4
    you are super lucky
    2010 F-350 03 5.9/848ecm, built 5R110, 30% over sticks, 10mm pump, 64mm Stealth Turbo
    2008 F-350 03 5.9
    Fumminstuning.com

  5. #5
    Potential Tuner
    Join Date
    Dec 2015
    Location
    West Newton, PA
    Posts
    1
    Just had same issue as OP stated, any insight on how to fix? Numerous tries to continue flash only resulting in timing out. Thanks

  6. #6
    Tuner in Training
    Join Date
    Dec 2019
    Posts
    24
    Disconnect both batteries and wait an hour. While waiting hook them up to a battery charger.

    Pull the fuel pump relay when flashing a tune. Have the computer connected to the obd port but turn the key to the run position first before opening the tune file.

  7. #7
    Mine times out a lot when it's not warmed up. I also have better luck when I hook a battery charger to it during the flash. Sometimes when it gets the ecm stuck in the middle of the tune, I just have to keep hitting write and eventually it will take. It take 50 times of trying sometimes.
    2004.5 Cummins.
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    banks intercooler, Banks intake horn,
    slightly built tranny.......