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Thread: Signum just cuts out!!

  1. #1
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    Default Signum just cuts out!!

    My 2003 2.0T Signum will just cut out at random moments whilst im driving it. Engine revs will drop, and you lose throttle completely and then the engine cuts out, even when taken out of gear and clutch engaged. If i then disconnect battery and reconnect it will start and run fine again no problem, but cut out again some time in the future??

    Have had numerous tech2 tests done at vauxhall dealer and changed an o2 sensor but no joy, my last phonecall to them led them to tell me i needed a new ecu at £700 +vat, and they not even seen the car or experienced the problem.

    Have been told that Idle Control Valve might be the cause, butt havnt the foggiest as to where to find it.

    Does anyone have any ideas/had a similar problem??

    all help greatly recieved

    cheers

    Chris

  2. #2
    Regular Member Gsi3.2's Avatar
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    the 2.0T doesn't really have an ICV...it just picks up via the electronic throttle butterfly..

    The ECU must have stored some codes...perhaps try a different dealer, or get the ECU's codes read by an independant as to just write it off over the phone shows just how interested they are....

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    thats what i thought, wasnt sure how they could tell the ecu was broken over the phone

    cheers

  4. #4
    Regular Member Gsi3.2's Avatar
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    they're just trying to cover themselves...

    even if it's faulty, an ECU will still give communication errors or other fault codes to point in the direction of the fault..

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