Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Please note that it is not permitted to have referral links posted in your signature. Keep these links contained in the appropriate forum. Thank you.

https://www.boards.ie/discussion/2055940817/signature-rules
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

NCT Emissions Failure.

  • 02-04-2012 2:04pm
    #1
    TimK1764
    Closed Accounts Posts: 12 ✭


    First car I've NCT'd and its failed on high idle emissions, slightly.

    Low Idle:
    CO 0.41% above 0.50% PASS
    HC 91 ppm above 0 ppm N/A

    High Idle:
    Lambda: 0.99 not between 0.97 1.03 PASS
    CO 0.42% above 0.30% FAIL
    HC 42 ppm above 200 ppm PASS

    Car was fully serviced two days ago, plugs, oil, filters. Cleaned the throttle body. Used two tanks worth of redex fuel additive over the past two weeks (filled up poured in the redex drove until near empty and repeated), drove for a good while almost an hour before the test to make sure it was warm, oil was 85c during the test.

    Few more things I've a k&n open induction filter on and the back box had a small leak where it connects to the center pipe, I used gun gum, it feels sealed, the back box sat off the car for almost a year and you can hear rust/carbon deposits moving inside of it when shook, tipped most of it out before putting it back on the car, but theres a small bit left, could that cause the slightly high CO or is it something else?

    Any help greatly appreciated thanks!

    P.S Sorry for another emissions thread, I googled and there was loads, but couldn't find one just slightly off. :P


Advertisement