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2000 vvti Corolla Lambda

  • 27-11-2013 9:39am
    #1
    pockets3d
    Registered Users, Registered Users 2 Posts: 283 ✭✭


    Failed the NCT on emissions, Lambda 1.07 but low CO and HC.
    Would this be a leaking exhaust or what ?
    I've a new backbox but i don't think its sealed right, still kind of noisy, or would it be something to do with the engine?
    Car burns oil but shouldn't that give high CO emissions too ?

    iSJbbOL.jpg


Comments

  • #2
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    It's the back-box. The exhaust gas is being diluted by air drawn via a leak somewhere downstream of the oxygen sensor.


  • #3
    pockets3d
    Registered Users, Registered Users 2 Posts: 283 ✭✭pockets3d


    OK if i get that fixed and retested would the other reading CO and HC likely still pass as well ?


  • #4
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    pockets3d wrote: »
    OK if i get that fixed and retested would the other reading CO and HC likely still pass as well ?

    That thing is burning clean-as-a-whistle. It's just leaking somewhere from around the middle-box back.


  • #5
    pockets3d
    Registered Users, Registered Users 2 Posts: 283 ✭✭pockets3d


    jimgoose wrote: »
    That thing is burning clean-as-a-whistle. It's just leaking somewhere from around the middle-box back.

    Good man thanks
    Just went out and gave it a good listen, what your saying sounds right. Good sounds like a cheap fix :D


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