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Thread: 04 P59 no min fuel milligram table/transient fueling table

  1. #1

    04 P59 no min fuel milligram table/transient fueling table

    I have a 2004 CTSV with a P59 pcm and some big injectors. The transient table is not in his tune file and I'm not able to get the ide fueling leaned out. Any insight on this. First time experiencing this issue!

    iR is the initial read from the pcm and other file is where I'm at currently. OL SD E85 car, single turbo setup.


    iR.hpt
    E85 stoich 2 bar 15.hpt

  2. #2
    Tuning Addict 5FDP's Avatar
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    May 2012
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    You could lower your fuel pressure. So instead of 58psi, do 43.5psi.
    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
    Tuning Addict blindsquirrel's Avatar
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    Apr 2017
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    Meridian MS
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    You have an old calibration there, yours 12588804 vs most recent in SPS of 12592433. The most recent cal does have the Transient tab.

    12592433.png
    2004 CTS-V OS 12592433.hpt