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Thread: carbon monoxide to high at mot

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    Default carbon monoxide to high at mot

    Nova gsi 1.6 8v failed mot on emissions yesterday it was just carbon monoxide it failed on its a h reg no cat help

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    it is adjustable on an e16se.. but check for air leaks on flexi & rubber air pipes then maybe change the CTS just to make sure

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    Quote Originally Posted by supernova.629 View Post
    Nova gsi 1.6 8v failed mot on emissions yesterday it was just carbon monoxide it failed on its a h reg no cat help
    Sounds like it's you that's high on monoxide, there fella.

    Open the garage door when you are redlining your boat anchor, after fitting your twin-upswept DTM.

    If you need any further advice, feel free to PM me.

    hashtaghth
    Last edited by L14MNP; 27-04-14 at 10:25 PM.

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    Cts ? Check all pipes whare do you adjust

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    Ive checked pipe work

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    Quote Originally Posted by supernova.629 View Post
    Cts ? Check all pipes whare do you adjust
    there is a co adjuster screw on the ECU, which is located on top of the AFM.

    as for the CTS, it is the coolant temperature sensor, it is either on the head, under the dizzy, or behind the intake manifold where is an ally box with 2 water pipes connected to it..

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    Quote Originally Posted by supernova.629 View Post
    Ive checked pipe work
    the big flexi pipes usually split, causing a heap of trouble. there is also the ICV, this is next to the inlet manifold & has 2 rubber air pipes and an electrical connector. this is basically an electronic choke. if this fails, it is permanently on, so people turn the tickover down to compensate, but the co is too high

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    Got ya yeah changed cts and checked all pipes cant find eny split pipes

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    Check the position of the distributor/cam pick up. If its moved the base timing will be out and will effect the CO. post the fail report results, if the CO was out, the lambda must be out a good way too. makes it easier to fault find.

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    e16se has no lambda.

    only the later c16se has one.

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