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Thread: VE table has no effect on fuel trims

  1. 09-09-2017 #1
    Srp0980
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    VE table has no effect on fuel trims

    Hey guys, I have a hell of a first post.... I have a friends 97 corvette here and I have disabled the maf, cot, pe, and all the other usual things I normally would to tune idle and part throttle. The car has long tubes and full exhaust, and a GM "hot cam"... Stock everything else as far as we know. Idling the car smells very ritch and the fuel trims are -25 in the histogram in the 15kpa cell. I have zeroed the VE in this area and it makes no change at all. I've changed injector min tables and pulse adder table to try and at least learn something about this but nothing helps. And insite would be awesome. Thank you
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  2. 09-09-2017 #2
    5FDP
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    Post tune and logs.
    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.
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  3. 09-09-2017 #3
    Srp0980
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    Ok I'll post them ASAP thanks
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  4. 09-09-2017 #4
    Ben C
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    You sure it's pulling that much vacuum at idle?
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  5. 09-09-2017 #5
    Srp0980
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    15kpa is the column is rides in at idle and about 1100-1200 rpm i have not verified with a mechanical gauge though
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  6. 09-10-2017 #6
    Srp0980
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    Hey guys, just wanted to let everyone know what was wrong, I goofed up and was making my changes in the wrong VE table, I had the colomb scaled wrong in the histogram. And I also didn't properly have the map sensor pid added in the chart. Sorry for the stupid post!
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  7. 04-07-2023 #7
    Cblakely21
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    What?s your contact info I need some help on 22 cummins stuff
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  8. 04-09-2023 #8
    bk2life
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    Quote Originally Posted by Cblakely21 View Post
    What?s your contact info I need some help on 22 cummins stuff
    start a new post in the correct place, not here
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