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Thread: this newb needs help tuning ve openloop

  1. #1
    Tuner in Training
    Join Date
    Nov 2012
    Posts
    26

    this newb needs help tuning ve openloop

    I failed the maf hooked up my wideband made the afr error graph but it seems like when driving the truck to populate the cells and when i release the throttle the previous cells get skewd i tried putting a filter on the afr error graph not sure its working, and what i know so far is to copy and paste multiply by % half and rinse and repeat until i get low errors but not sure if im doing this correctly.
    Attached Files Attached Files

  2. #2
    Advanced Tuner
    Join Date
    Jul 2015
    Posts
    925
    I don't have HPT on this computer so I can't look at your tune file. Do you have DFCO and COT both disabled?

  3. #3
    Tuner in Training
    Join Date
    Nov 2012
    Posts
    26
    no i donthave dfco disabled howdo i do that?

  4. #4
    Advanced Tuner
    Join Date
    Mar 2007
    Location
    DFW Texas
    Posts
    306
    Quote Originally Posted by PeteZ View Post
    no i donthave dfco disabled howdo i do that?
    Read the User submitted help file. In the editor, click "help" and find the "speed density tuning" topic. It walks you step by step how to get you on the right track.
    1961 C-10 5.3 NV3500

    2007 NNBS ECSB 4.8