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Nct Fail Exhaust Emissions

  • 29-09-2011 2:17pm
    #1
    richfly
    Registered Users, Registered Users 2 Posts: 188 ✭✭


    Hi Guys car Opel Corsa 1999 failed nct today because of emissions does anyone have any ideas what the problem might be?

    Low idle: CO 0.52 VOL%
    HC 57 PPM

    High idle: Lamdba: 0.98
    CO 0.65 VOL%
    HC 51 PPM

    Failed on both CO.
    Hope this helps somewhat.


Comments

  • #2
    BronsonTB
    Registered Users, Registered Users 2 Posts: 1,905 ✭✭✭BronsonTB


    'Diptane' is your only job.....(Local motor factors)

    And replace the lambda sensor...

    Sligo Metalhead



  • #3
    richfly
    Registered Users, Registered Users 2 Posts: 188 ✭✭richfly


    Do you know where i could get a cheap lambda sensor for a corsa?


  • #4
    Plug
    Registered Users, Registered Users 2 Posts: 9,248 ✭✭✭Plug


    It can be a lambda sensor, map/maf sensor, dirty air filter. I wouldn't spend a penny until I know whats the cause. Hook it up to a diagnostic scanner.


  • #5
    stephenburke27
    Closed Accounts Posts: 8 ✭stephenburke27


    I will tell u a very common problem with that model corsa the weld around the cat cracks.this could be your problem deffo have a look at that first hapoened myself twice on my own one when i was younger although if it is that there cheap to buy in the scrappers


  • #6
    fp1
    Registered Users, Registered Users 2 Posts: 32 ✭fp1


    It doesn't sound like a lambda sensor fault to me, I would be more inclined tomthink the cat is failing. The emissions are only slighty off so I would try the dipetane.


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  • #7
    richfly
    Registered Users, Registered Users 2 Posts: 188 ✭✭richfly


    what happens if i fail the retest?


  • #8
    _Conrad_
    Registered Users, Registered Users 2 Posts: 1,191 ✭✭✭_Conrad_


    richfly wrote: »
    what happens if i fail the retest?

    then you have to book again and it costs you more money, other than that nothing.


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