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High idle emissions NCT failure

  • 21-05-2012 6:51pm
    #1
    pcasso
    Registered Users, Registered Users 2 Posts: 511 ✭✭✭


    Just wondering if anybody had any thoughts or recommendation of where to go.
    My 02 Mondeo recently failed the NCT retest on high idle emissions.
    I did they whole dipetane thing before the retest and while it brought all emissions into a pass area for low idle the CO and HC emissions increased on high idle.
    The cat and the O2 sensor were changed two years back and I had hoped to get a bit longer out of them than that.

    Any recommendations on where I could go that wont tell me I need a lot more doing to the car than I actually need and rip me off.
    I am in north Dublin city.
    Thanks in advance.


Comments

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


    Could be burning oil, is it the 1.8/2.0?


  • #3
    pcasso
    Registered Users, Registered Users 2 Posts: 511 ✭✭✭pcasso


    Plug wrote: »
    Could be burning oil, is it the 1.8/2.0?

    1.8 petrol

    It does seem to have been going through a good bit of oil lately


  • #4
    Jimbob 83
    Registered Users, Registered Users 2 Posts: 2,032 ✭✭✭Jimbob 83


    Brother just failed his retest on his 01 Vectra for the same reason, he seems abit pissed atm, i would be too driving 1 hour to Ballinasloe and 1 hour back.

    Needs a new cat im pretty sure


  • #5
    Plug
    Registered Users, Registered Users 2 Posts: 9,248 ✭✭✭Plug


    pcasso wrote: »
    1.8 petrol

    It does seem to have been going through a good bit of oil lately
    Was the correct oil used during its life/was it driven hard/high mileage???

    All these factors could cause it to burn oil.


  • #6
    pcasso
    Registered Users, Registered Users 2 Posts: 511 ✭✭✭pcasso


    Jimbob 83 wrote: »
    Brother just failed his retest on his 01 Vectra for the same reason, he seems abit pissed atm, i would be too driving 1 hour to Ballinasloe and 1 hour back.

    Needs a new cat im pretty sure
    Thats not what I wanted to hear but thanks anyhow.
    Is it odd that the HC and CO emissions increased on high idle while all the other ones went down after putting dipetane in.

    Anyone recommend a good place to go for a cat replacement if this is indeed the problem.


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  • #7
    Plug
    Registered Users, Registered Users 2 Posts: 9,248 ✭✭✭Plug


    Can you put up the results of both tests.


  • #8
    Jimbob 83
    Registered Users, Registered Users 2 Posts: 2,032 ✭✭✭Jimbob 83


    Yea OP im not saying you need a new cat but brother does as he failed test and retest on same thing, you might get away with some fuel additive and some hard driving or something similar.


  • #9
    pcasso
    Registered Users, Registered Users 2 Posts: 511 ✭✭✭pcasso


    Sorry, just had to pop out for a bit.

    these are the two test results

    LOW IDLE

    CO .66 -- .02
    HC 263 -- 127

    High IDLE

    Lambda 1.05 -- .99

    CO .78 -- 1.45

    HC 307 -- 475


  • #10
    pcasso
    Registered Users, Registered Users 2 Posts: 511 ✭✭✭pcasso


    Anyone?


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