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Almera n16 nct fail emissions

  • 03-07-2014 10:24pm
    #1
    lawlor59
    Registered Users Posts: 28 ✭


    I have a Nissan Almera which recently failed the NCT on emissions.

    Low idle 2.44 above 0.3 is fail

    High idle 2.65 above 0.2 is a fail.

    Lambda is 0.92 which should be between 0.97 and 1.03

    Timing chain was done at 50k miles (€800 from nissan 😭)and both lambda sensors were done around the 45k miles mark.

    The car is a 03 with 75k miles. Ive also found the lambda sensors that were put it weren't genuine despite paying €450.

    I put in smoke eliminator which brought low idle emissions down to 0.33.

    Car was recently services(albeit by myself). So it had a oil change, oil filter change, air filter change, pollen filter and new spark plugs.

    Money is tight being a student so any help would be appreciated.

    Thanks


Comments

  • #2
    IronicNic
    Closed Accounts Posts: 28 ✭IronicNic


    Hi ..did you get it through? What did you do .
    I have Primeria 2003.
    I have failed emissions twice..First time the mechanic just washed excess oil from the engine.
    Would that stuff put into petrol and a good 20KM run before the restest sort it based on these results.



    low idle - Engine\Oil temp 101C - Above----Results
    863 rpm - CO 0.48 VOL% - 0.30% --FAIL/REFUSAL
    HC 100 PPM - 0 ppm ---- N/A

    high idle - lambda 0.99 - not between 0.97 and 1.03 --PASS
    2,938 rpm - C0 0.89 VOL% - above 0.20%
    Fail
    HC 195PPM - above 200ppm
    Pass


  • #3
    SCOOP 64
    Registered Users, Registered Users 2 Posts: 5,303 ✭✭✭SCOOP 64


    Am i reading this right?

    high idle - lambda 0.99 - not between 0.97 and 1.03

    Should it be between 0.97 and 1.03 for pass, should 0.99 be a pass?


  • #4
    IronicNic
    Closed Accounts Posts: 28 ✭IronicNic


    SCOOP 64 wrote: »
    Am i reading this right?

    high idle - lambda 0.99 - not between 0.97 and 1.03

    Should it be between 0.97 and 1.03 for pass, should 0.99 be a pass?

    Thanks ..I could have saved some typing by posting the fails ;)..I have edited the post.


  • #5
    lawlor59
    Registered Users Posts: 28 ✭lawlor59


    IronicNic wrote: »
    Hi ..did you get it through? What did you do .
    I have Primeria 2003.
    I have failed emissions twice..First time the mechanic just washed excess oil from the engine.
    Would that stuff put into petrol and a good 20KM run before the restest sort it based on these results.



    low idle - Engine\Oil temp 101C - Above----Results
    863 rpm - CO 0.48 VOL% - 0.30% --FAIL/REFUSAL
    HC 100 PPM - 0 ppm ---- N/A

    high idle - lambda 0.99 - not between 0.97 and 1.03 --PASS
    2,938 rpm - C0 0.89 VOL% - above 0.20%
    Fail
    HC 195PPM - above 200ppm
    Pass

    I put in emissions eliminator. Gave it a good drive the night before and then before the test I made sure the engine was as hot as it could be. Seems to have done the trick. My emissions seem to go up slows as the engine cools. Oh ye and try not to have too much oil as this can cause higher emissions supposedly.


  • #6
    cletus
    Registered Users, Registered Users 2 Posts: 8,053 ✭✭✭cletus


    IronicNic wrote: »
    Hi ..did you get it through? What did you do .
    I have Primeria 2003.
    I have failed emissions twice..First time the mechanic just washed excess oil from the engine.
    Would that stuff put into petrol and a good 20KM run before the restest sort it based on these results.



    low idle - Engine\Oil temp 101C - Above----Results
    863 rpm - CO 0.48 VOL% - 0.30% --FAIL/REFUSAL
    HC 100 PPM - 0 ppm ---- N/A

    high idle - lambda 0.99 - not between 0.97 and 1.03 --PASS
    2,938 rpm - C0 0.89 VOL% - above 0.20%
    Fail
    HC 195PPM - above 200ppm
    Pass

    when you say the mechanic washed excess oil from the engine, do you mean he drained oil out of the engine itself? If so is your car burning a lot of oil, and are you having to top it up regularly


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  • #7
    IronicNic
    Closed Accounts Posts: 28 ✭IronicNic


    cletus wrote: »
    when you say the mechanic washed excess oil from the engine, do you mean he drained oil out of the engine itself? If so is your car burning a lot of oil, and are you having to top it up regularly

    No I thought he was referring to spillage.. one time I forgot to replace the cap and went on a long drive ..it spewed the oil everywhere all over the engine ..I would top occasionally but nothing out of the ordinary..he filled it with oil on the last service and its still full so I doubt its burning alot of oil.


  • #8
    cletus
    Registered Users, Registered Users 2 Posts: 8,053 ✭✭✭cletus


    Sorry, from your post I thought you meant that you passed the emissions test because mechanic cleaned oil from the enhine


  • #9
    IronicNic
    Closed Accounts Posts: 28 ✭IronicNic


    Ok well booked in for retest ..will get diatame altough alot of people reckon its a waste of time..the Italian tune-up before hand and see how she blows.


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