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Thread: vectra c turbo petrol , tick over

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    Regular Member davedave's Avatar
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    Default vectra c turbo petrol , tick over

    hi ive noticed when my car is ticking over and parked up that its not ticking over smoothley.the needle on the rev counter is moving up and down very slightly and sometimes you can feel the engine in the car. also when im driving it and then coming to a stop a put my clutch in the needle sometimes drops , and on the odd accasion the car has cut out.any ideas, sorry for the big essay.

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    Full Member Caveman_nige's Avatar
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    do you have a 2.0 turbo or a 2.8 turbo? If its the 2.0 then your engine is known as a Z20NET. Have a search and you will find a fair few having this issue at the moment, follow the advise in their threads and see how you get on..

    Bsically you have a process of elimination to follow before you want to go replace parts you may not need to. Start with a good service like new spark plugs and oil change, a new air filter, new fuel filter, run through some injector cleaner and put some decent high octane petrol in. Clean the MAF sensor, clean the MAP sensor, clean the EGT and/or lambdas. Clean out the throttle body. Check your spark plugs if you didn't change them, check your pipework for air leaks.

    Then take the car out and thrash it down the motorway keeping a sustained speed for a good distance to get it nice and hot, that should shift any crud and help clean the cat.

    try the pedal test to read off any fault codes (see here >>>> http://www.vectra-c.com/forum/showthread.php?t=81742 )
    My old Signum, the animal; she now rests in pieces in several other members cars.. https://www.vectra-c.com/forum/garag...vehicle&id=200
    The wifes vec show car, started as a standard daily driver and ended up like this. https://www.vectra-c.com/forum/garag...vehicle&id=709



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    Regular Member GoldenWonder's Avatar
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    Its seems to be cropping up on a few turbos!

    I've done the air filter, fuel filter, plugs and cleaned my throttle. Made no difference to the idle speed. Next is the CTS and taking it into the high revs a few times.

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    Regular Member davedave's Avatar
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    Default vectra c 2litre turbo petrol engine diagram

    hi has any one got a diagram of a vectra c sri 2litre turbo engine showing where most of the sensors are mine is the 07 plate as i could do with cleaning them

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