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Thread: 2 sd tuning

  1. #1
    Advanced Tuner
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    2 sd tuning

    Hi guys when doing a late model e38 and a 2 bar sd tune do I write entire to the ecu as well as the fuel pump model or just do the ecu and leave the pump module? Cheers

  2. #2
    Tuning Addict 5FDP's Avatar
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    May 2012
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    Rogers, MN
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    Just the PCM needs a write entire if you are doing the 2 bar OS change.
    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.

  3. #3
    Advanced Tuner
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    Cheers thanks