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Thread: ERROR: PROM I/O returned failure?

  1. #1
    Fuel Injected! brian617's Avatar
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    ERROR: PROM I/O returned failure?

    Trying to program my first chip and I keep getting this error message.

    Tried two different chips and two different .bins and get same problem.
    89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
    95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
    05 Outback XT 2.5L turbo gas auto

  2. #2
    Fuel Injected! brian617's Avatar
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    After more trying I downloaded Flash&Burn from Moates site and seperately it will program the chip. However I still cannot program it through TP5rt. Not sure what that means lol.
    89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
    95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
    05 Outback XT 2.5L turbo gas auto

  3. #3
    Super Moderator Six_Shooter's Avatar
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    I had that problem with an older version of TPRTV5. What version are you running?
    The man who says something is impossible, is usually interrupted by the man doing it.

  4. #4
    RIP EagleMark's Avatar
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    Probably an offset issue?

    This article has offsets to read stock GM chips as well as program bin files to aftermarket chips. Do not rely on TP to change offsets properly when just selecting a chip from dropdown menu.
    http://www.gearhead-efi.com/Fuel-Inj...Flash-and-Burn

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  5. #5
    Fuel Injected! brian617's Avatar
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    TunerPro RT version 5.00
    89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
    95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
    05 Outback XT 2.5L turbo gas auto

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