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Thread: parking lot rolling idle problem

  1. #1
    Tuner in Training
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    parking lot rolling idle problem

    I have had a problem with my idle jumping and about dying after its all warmed up in a parking lot. I have adjusted all my ve, iac, braf, and everything else i can think of. Idles just fine in gear or out of gear no matter what the temp. Just when slowing down to a stop sign or pulling into a parking lot the idle will drop down to 4-500, but once at a complete stop if will smooth back out. But if you just slowly try to move to park it will drop to 400 and have problems staying running and can die. Not sure what settings to try and work with to help this out. I will post a log showing what happens at the end of it trying to stop back up and park. Can see it going up and down, and also the tune that is in it. didn't log the wideband this time but watching it will go down to around 14.3-14.5 just before a complete stop then jumping between 14.7-15.8.

    drive to chopper.hpl
    1-2 less pressure.hpt
    Last edited by 49 hoopty; 04-01-2022 at 09:07 AM.

  2. #2
    Senior Tuner Ben Charles's Avatar
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  3. #3
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    I thought about engaging the follower and cracker, but most things i have read everyone shuts off cracker to make it idle better. So wasn't sure if i wanted to start down that road or not. I will give it a shot. I see stock settings have 2mph for enable and disable. what are the preferred mph? I was gonna put 1 and 3.
    Last edited by 49 hoopty; 04-01-2022 at 03:19 PM.

  4. #4
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    Did you figure this out? I have been fighting the same issue. I can raise the idles, and the rolling stop which takes it away but it puts my idle around 850 in gear before that happens. I am tyring to find the root cause.

  5. #5
    Senior Tuner edcmat-l1's Avatar
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    Quote Originally Posted by bpfeiffer View Post
    Did you figure this out? I have been fighting the same issue. I can raise the idles, and the rolling stop which takes it away but it puts my idle around 850 in gear before that happens. I am tyring to find the root cause.
    Start your own thread instead of digging up an old one. And post a tune file and data log along with all the vehicle specs/mods.

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