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Thread: Idles fine after loading new tune. Drive it goes to crap

  1. #1
    Senior Member
    Join Date
    Oct 2007
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    170

    Default Idles fine after loading new tune. Drive it goes to crap

    Still working on idle issues here I can load a new tune file. Do some idle learns, reload, etc etc.

    Idles great after I load in my tune files. But after I drive it say 20 miles or so, it goes to crap. Let it cool all the way off, start and it wont idle. WTF?

    my refaig is around -.15 or so(after loading new tune). Is that close enough? Or is that still to far off.

    What else could it be?
    11 Silverado
    08 Sierra
    91 RS with 350 TPI and 411 ECM

  2. #2
    Member
    Join Date
    Jun 2007
    Posts
    68

    Default

    Quote Originally Posted by Dale
    Still working on idle issues here I can load a new tune file. Do some idle learns, reload, etc etc.

    Idles great after I load in my tune files. But after I drive it say 20 miles or so, it goes to crap. Let it cool all the way off, start and it wont idle. WTF?

    my refaig is around -.15 or so(after loading new tune). Is that close enough? Or is that still to far off.

    What else could it be?
    try turning idle learning off and see what happens?
    WWW.EFIAlchemy.com

  3. #3
    Senior Member
    Join Date
    Oct 2007
    Posts
    170

    Default

    Quote Originally Posted by eurospec1
    try turning idle learning off and see what happens?
    Where is that at? (dont have efi in front of me at moment)
    11 Silverado
    08 Sierra
    91 RS with 350 TPI and 411 ECM

  4. #4
    Senior Member
    Join Date
    Oct 2007
    Posts
    170

    Default

    Ok, I assume you were talking about B4501 and B4502. I moved both of them up to 130.

    Loaded
    Started, did a refaig process. Showed I needed to add .07 lbs about everywhere but edited nothing.

    Drove over to gas station (about 3 miles away) and drove fine.
    Turned off for gas
    Started back up, stalled. Start, stall. I drove thru neighborhood on way back and stalled everywhere.

    Once I got it in the garage I somehow managed to bring it down slow and it showed I needed .50lb at idle.

    Why the difference?
    11 Silverado
    08 Sierra
    91 RS with 350 TPI and 411 ECM

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