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Thread: 04 pcm flashed with 02 os for better ve table

  1. #1
    Tuner in Training
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    04 pcm flashed with 02 os for better ve table

    I was wanting to know if it was possible to flash a 04 truck pcm with the os off my 02 to get better resolution on my ve table for 3 bar map.

  2. #2
    Senior Tuner
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    No, different pcms, not compatible.

  3. #3
    Tuner in Training
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    Will a 02 pcm plug into the 04 harness

  4. #4
    Tuning Addict 5FDP's Avatar
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    Still wouldnt work.

    02 is a cable Throttle body, 04 is drive by wire.

    Way too much different.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  5. #5
    Tuner in Training
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    My 02 2500 gmc 6.0 is drive by wire and none of the gauges have to work because the 04 stuff if trasfered to a 70 firebird

  6. #6
    Advanced Tuner CatnipG5Bandit's Avatar
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    Are you not running the custom OS? It's better than trying to mickey mouse something together and hope it works. Or use an '02 harness and everything else.

  7. #7
    Tuner in Training
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    I was going to use custom os but when I changed it and looked at the ve table stayed the same size I decided to go for the 411 for better resolution

  8. #8
    Tuner in Training
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    If you guys thick it won't make a difference in tuning out I will give it a shot but the is 20 kpa gaps in the boosted region

  9. #9
    Advanced Tuner CatnipG5Bandit's Avatar
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    Can you post a tune? The tables in the repository for both years look pretty close to each other. It's hard to tell without looking at yours.

  10. #10
    Tuner in Training
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    I don't know how to upload tune to form

  11. #11
    Advanced Tuner CatnipG5Bandit's Avatar
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  12. #12
    Senior Tuner
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    You can repin the 04 harness to work with 0411 computer. You will have to replace plastic green colored covers or grind tabs off to get into PCM. It will double size of ve table going this route.

  13. #13