Was a rough idle... 306 gti6
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  1. #1
    Fellow Frogger! BradlehGordz's Avatar
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    Default Was a rough idle... 306 gti6

    This morning it stalled 4 times trying to start it and i thought it was because it was cold, and it ran find after that... and all today, but when i got in it to go home, the revs were f*cked! On idle it was reving to 3k and dropping to 1.5 and going back up when ever it was idleing or when i dipped the clutch.... anyway, I just disconnected the ecu then and it is a lot better, I don't know if it was a coincidence, but it only rises about 100 rpm and drops, so does this sound like a ICV problem?
    Also, would this cause the stop light to illuminate?


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  2. #2
    Fellow Frogger! Karoshi's Avatar
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    No stop light for icv.
    I might be wrong but your symptom of running high then low is more likely an air leak in the intake assembly?
    I just changed my stepper motor in the icv and think I have solved my intermittent idle problem after a few years of it touch wood. I had the icv cleaned when it started but i didnt realize the stepper was a seperate issue.
    Mine used to just die at idle at random times. By die I mean stop....

    Good luck,
    Bill

  3. #3
    Fellow Frogger! BradlehGordz's Avatar
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    If it was a leak, theoretically the ECU restart wouldn't have done anything?
    What hoses in particular would I be looking at?
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  4. #4
    Fellow Frogger! Karoshi's Avatar
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    Any cracks in the intake piping may mean air is not proportioned correctly between main inlet and icv OR air leaks in inlet manifold gasket means incorrect air fuel ration (air introduced after the injectors).

    I'm no expert so I'm fully expecting to have someone correct me

  5. #5
    1000+ Posts cam85's Avatar
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    Default

    This woldnt have anything t do with your car overheating over the last few days etc?

    Cam
    98 Xantia CT
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  6. #6
    Fellow Frogger! BradlehGordz's Avatar
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    The overheating was due to the coolant not being bleed correctly, kind of embarrasing :L haha
    This is only happened within a day or two, just came out of no where?
    It had a little idle problem before, but I cleaned the ICV and it was cleaner after that, but when I cleaned it this time it didn't work? Until I didn't an ECU reset after putting it back in (I heard you have to reset your ECU after you clean or put a new ICV in?) correct me if I am wrong?
    P-Plater

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