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  1. 99.5 PCM wont flash back to stock

    99-03 7.3L Powerstroke Problems
    I have a 1999.5 F250 4X4 automatic. It runs great but I wanted to put a TS 6 position chip in it. The previous owner flashed it with a Hypertec programmer. I don't know which tune. I was told I needed to flash the PCM back to stock before I installed the chip. I took it to the Stealership and...
  2. 6.4 Strategy

    General 6.4L Discussion
    I'm new to the 6.4 world. Had a 6.0 before :doh: There was a ton of discussion about different strategies for the 6.0 and which gave you the best fuel mileage/power. I remember I took my truck in for service right before I went on a 1500 mile round trip and half way through the trip I was only...
  3. "Manual" ECU Flashing - 6.4L ECU Thread

    6.4L Performance Parts Discussion
    I notice that there is no real discussion of tuning outside of using dedicated diesel tuning devices that marry themselves to one VIN number. I would like to start discussion around what it takes to remove the ECU from a vehicle, disassemble it, dump the stock rom from the device, modify it...
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