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Thread: 2008 6.4 to cummins swap

  1. #1
    Potential Tuner
    Join Date
    Dec 2018
    Posts
    1

    2008 6.4 to cummins swap

    Hey guys I am running into a issue. 2008 Ford 6.4 Automatic swapped the 6.4 out to a 5.9 cummins. After doing some tuning with the hp, I have got the transmission shifting perfect and everything working together except one little issue.
    When I first start the truck the ford ecm thinks the truck is under 95%+ load and shutting off the throttle. The higher I raise the RPM the lower the load goes. If I clear Codes while it is running then everything is perfect (the load reverts to 0% at idling and the Pedal works.) The ecm shutting the pedal off screws up the transmission shifting as the transmission does not see the throttle position. I've been fighting with this for a couple months any ideas would help greatly.

  2. #2
    Advanced Tuner dhoagland's Avatar
    Join Date
    Jun 2015
    Location
    Aubrey TX
    Posts
    890
    What codes are being set?
    2011 Camaro 2SS Convertible L99 Bone Stock for now
    2003 Dodge 2500 5.9 Cummins QC 4x4. Airaid, 2nd Gen Intake, Grid Heater Delete, D-Tech 62/65/12, Magnaflow. Bully Dog: Propane Injection, Triple Dog W/Outlook Crazy Larry. Edge EZ, BD Flow-Max, 48RE: Sonnax Sure Cure/Transgo combination, Derale turbulator, billet input, Triple Disc, Super servo, 4 ring Accumulator. :beer

  3. #3
    Can i take a look at your tune?