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99 Suzuki Swift 1.0 NCT Emissions fail

  • 10-01-2015 9:57pm
    #1
    davycha
    Registered Users, Registered Users 2 Posts: 75 ✭✭


    Hi All ,
    Looking for some help/advise on my daughter's car , it has just failed an NCT retest on Emissions.
    Results of first test were as follows:
    Low idle
    CO 0.54% ......above 0.50% fail
    HC 172 ppm ..... Above 0 ppm N/A

    High idle
    Lambda 1.05 .....not between 0.97 and 1.03 .. fail
    CO 0.54% ...... above 0.30% fail
    HC 172 ppm .... above 200 ppm pass


    Prior to retest I fitted a different Lambda Sensor (not new) and ran some dipetane through to try to sort it .
    Results of retest below

    Low idle
    CO 0.80% ..... above 0.50% fail
    HC 203ppm ....above 0ppm N/A

    High idle
    Lambda 0.87...not between 0.97 and 1.03 .. fail
    CO 5.25% ...... above 0.30% fail
    HC 176 ppm .... above 200 ppm pass

    Temperature was 81 degrees C on both tests

    not sure where to go from here on this, would anyone have any ideas on what would be the cause of the above readings or is it a combination of things .
    Any help at all would be greatly appreciated .

    rgds Davycha


Comments

  • #2
    hoodie6029
    Registered Users, Registered Users 2 Posts: 4,238 ✭✭✭hoodie6029


    Try a brand new lambda sensor. Drive the car for 30 minutes before the next test to make sure its warmed up.

    This is water. Inspiring speech by David Foster Wallace https://youtu.be/DCbGM4mqEVw?si=GS5uDvegp6Er1EOG



  • #3
    davycha
    Registered Users, Registered Users 2 Posts: 75 ✭✭davycha


    Hoodie ,
    thanks for the reply on this , yes I was talking to a few mechanics and some said new Lambda , some said new lambda and cat ,

    I just need to get more info before splashing out on a new cat .

    The lambda I replaced came out of a car that was running perfect but I suppose being second hand it could be faulty .
    I am just worried that there is some secondary issue that is causing these readings like overfuelling etc, That is why I posted up the figures of the tests as I was hoping someone here would be able to interpret them .

    thanks again

    davycha


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