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Thread: OLSD 3 bar minimum injector pulse

  1. #1

    OLSD 3 bar minimum injector pulse

    P01 411 ecu, lq9, ID850's, turbo in a 69 C10. Pulse width will not drop below 2.5ms most of the time. If it does it drops straight down to 1.4ms then back up to 2.5. Nothing in between. Making it difficult to tune the VE table at idle and light cruise. I have the lower KPA cells in the VE table dropped way down with no change. Minimum pulsewidth is set to .122 per ID's data.


    Log 1.hpl

    _3bar_os_turbo.hpt

  2. #2
    Tuning Addict 5FDP's Avatar
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    Cut the min fuel milligrams under the transient fuel tab in half. See what that does for you.
    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
    Quote Originally Posted by 5FDP View Post
    Cut the min fuel milligrams under the transient fuel tab in half. See what that does for you.
    Welp. That definitely did the trick. I actually went down a 1/4 of the stock value. Thanks!

  4. #4
    Tuning Addict 5FDP's Avatar
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    Good deal.
    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.

  5. #5
    Quote Originally Posted by 5FDP View Post
    Cut the min fuel milligrams under the transient fuel tab in half. See what that does for you.
    Somebody sticky that!!! Was loosing my mind.