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Thread: Low idle speed/ EML-TC light

  
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    marcus_valver's Avatar
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    Low idle speed/ EML-TC light

    On the way to work this eve, I gave my coupe a bit of welly around a roundabout which caused the deaded EML and TC light to come on. I continued on way to work with no other apparent problems. When I got to work I let the car idle and found that it was idling very low and eventually would cut out. It took to goes to start the car again.
    The Bailey dump valve that is on the car (and still with the OEM one running) seems to be open all the time the car is idling, Is this right? because i cant say I have ever noticed but i thought its natual position was to stay shut?

    Any one have any idea?
    Europa blue Astra coupe turbo
    Sapphire black Astra twintop turbo

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    Millen99's Avatar
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    I was thinking the exact same thing yesterday!

    Mine stays open. not sure if it's meant to. Hopefully someone will shed some light on this?

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    Im hoping that its something as simple as AFM......
    Europa blue Astra coupe turbo
    Sapphire black Astra twintop turbo

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    webbo gsi's Avatar
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    sounds like your afm has given in! as for the bailey dv, put your hand round it and see if you can feel air coming out of it! if it is then there is something wrong! certain the problem is the afm as i have done in 5 in the last seven months and each time its done exactly what you have said yours has done!!!

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    Thanks for that, its good to actually hear someone that has had the exact same problem and no just similar.

    Oh well I think us turbo owners know that these days would come!
    Europa blue Astra coupe turbo
    Sapphire black Astra twintop turbo

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    If the DV valve is open at all at idle, air would be sucked in not blown out!!!

    The DV would be being pulled open by the vacuum in the intake manifold at idle, which would inturn see more air going to the engine than the AFM had measured causing low idle, and cutting out..

    When boost rises, the valve is close by the boost pressure in the intake manifold and the car runs ok...

    IMHO, I would try taping off the valve and see if idle returns. if it does tighten up the DV spring (if you can) or the DV may have packed it in...

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