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Thread: Idle on 2.2

  1. #1
    Regular Member Cossy's Avatar
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    Default Idle on 2.2

    I've got a 2.2 16v on a 52 plate. Just recently the idle has started to drop or over rev, Nothing major but still abit worrying.... after reving or driving and then stopping it might drop to 500rpm and then go back to the normal 900rpm tickover. Equally sometimes after stopping it sometimes reves upto 1500rpm before dropping back down to tickover.

    Any ideas? Is there an idol control valve anywhere or sometime i need to clean or replace, any advice would be helpful

  2. #2
    Full Member Leemarksmith's Avatar
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    Vehicle : Vectra

    Trim : SRi (VXR Styling)

    Engine : Z19DTH (Re-mapped)

    Year : 04

    Mileage : 110k

    Default

    is this all the time or when your engines cold...

    Mine cant decide weather it wants to tick over from 600 or 800 when 1st start. but couple miles later its fine when warm...

  3. #3
    Regular Member Cossy's Avatar
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    its all the time really, doesn't make a difference if ive just started it or ive done a 500 mile round trip somewhere.

  4. #4
    Regular Member Cossy's Avatar
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    Anybody got any ideas as i cant seem to get to the bottom of it.

  5. #5
    Regular Member rushy's Avatar
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    Vehicle : SRi


    Engine : Z22SE (2.2 Petrol)

    Year : 2004

    Mileage : 137000

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    There's no idle control valve mate on the 2.2 TB, the gap around the butterfly does most of the work if this gets dirty it blocks off the little amount of air needed to give the correct tick over. To start off give the TB a good clean, inside and out, then check for and leaks on and vac lines. THIS LINK might help mate, its another 2.2 vec c having the same problem over on the 2.2 forum. HTH

  6. #6
    Regular Member Cossy's Avatar
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    as always rushy you are the 2.2 expert, i will give that ago and see if it solves the problem

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