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Thread: Emissions Light

  1. #1
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    Default Emissions Light

    After changing the spark plugs yesterday the car felt quite 'jerky' at times, but drove fine.

    3 times today the emissions light came on and the car idled very roughly and shook quite bad until i turned the engine off and back on.

    There was no other warning lights apart from the emissions.......

    Any ideas what it could be? The fuel pump and regulator were changed this year but i can't see that having any affect. It's only happened since changing the plugs.......

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    Quote Originally Posted by T4M View Post
    After changing the spark plugs yesterday the car felt quite 'jerky' at times, but drove fine.

    3 times today the emissions light came on and the car idled very roughly and shook quite bad until i turned the engine off and back on.

    There was no other warning lights apart from the emissions.......

    Any ideas what it could be? The fuel pump and regulator were changed this year but i can't see that having any affect. It's only happened since changing the plugs.......
    stick the old plugs back in and try that, if it runs ok, your news plug have a duff one in there midst

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    One of them does have one electrode touching the base of the plug. i noticed yesterday and thought nothing of it, but now think that could be the problem one

  4. #4
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    Default

    ..it's short cicuiting Tam.. get it out.. right now....

    The spark gap is very important ( the gap between the two electrodes) and is fectory preset.. you've just created the worlds first 3 cylinder 2.2 engine....

    the reason the emissions light is on, is you are pouring unburnt fuel through the catalyst when the spark doesn't ignite it....

    Get the plug out, and either gapped to match the rest, or changed for a new one..

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    Cheers Mark - as for the first 3-cylinder direct, it did sound like one when i was going down an A-road lol

    I'll get it sorted today

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