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Thread: Looking for stock tune - 03 silverado 5.3l flex

  1. #1
    Potential Tuner
    Join Date
    Jun 2015
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    1

    Looking for stock tune - 03 silverado 5.3l flex

    I am converting over to a flex fuel setup and want to start with a stock tune from my exact truck to make things as easy as possible. i looked in the repository looking for chevrolet tunes with 'flex' as the optional text but only found tahoe tunes for different years. my 03 is DBW and return fuel system so looking for a 03 because its kinda of a hybrid year . 99-02 are DBC and 04+ are returnless so 03 is a mix of both. anyone have a 03 silverado flex 5.3l tune i could download?

    thanks

  2. #2
    Potential Tuner
    Join Date
    Mar 2017
    Location
    Washington
    Posts
    2
    Hey. Ive got an 03 Tahoe flex fuel with return rails and dbw intake in my square body. It's a stock tune and had lt1swap unlock the pcm. I just got hpt but haven't tried to read pcm yet. If I figure it out I'll post em for you.

  3. #3
    Potential Tuner
    Join Date
    Mar 2017
    Location
    Washington
    Posts
    2
    Here I think I got it for you... hope this helps.

    Stock 2003 Flex Fuel Tahoe.hpt