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Thread: LS2 GTO Idle

  1. #1
    Lifetime Member minytrker's Avatar
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    Default LS2 GTO Idle

    I tuned a gto a couple weeks ago with a cam, had it idling at 700rpm. Today the owner unhooked the batt for about 30min and called and said its idling back at stock idle rpms. How could have unhooking the batt change the idle? I have never heard of that before.

  2. #2
    Lifetime Member minytrker's Avatar
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    Anyone else had this happen?

  3. #3
    Lifetime Member Bruce Melton's Avatar
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    It should relearn back to tune. Give it some time?

    2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
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  4. #4
    Lifetime Member Doc's Avatar
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    What kind of tune? OLSD? CLMAF? Is idle learning active?

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  5. #5
    Lifetime Member minytrker's Avatar
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    CLMAF
    It never relearned, but I reflashed it and it idles fine again.

  6. #6
    Lifetime Member Bruce Melton's Avatar
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    So it reverted to stock tune after power loss ?????

    2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
    PowrMax Performance

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  7. #7
    Lifetime Member minytrker's Avatar
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    Thats what it seems like, atleast it went back to stock idle. I have the idle set at 700rpm for the cam, and after the batt was unhooked it went back to stock idle. The guy drove the car for a week and it never went back to 700rpm. I reflashed it and its been at 700rpm ever since.

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