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RRC Sept. 1994, Vogue SE , V8 3.9 LITRE Petrol, Emissions

Discussion in 'Range Rover' started by walace58, Jun 4, 2020.

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  1. walace58

    walace58 Member

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    For the last few years my car just fails it’s emissions levels. 3 or 4 years ago a new cat was fitted . Made very little difference but made it through. Same then every year. But the levels don’t get any worse year on year.
    I understand the MOT station are directed on the emissions levels from the DVLA database for the registration.
    I am wondering whether there is a discrepancy, because the P38 and Classic overlapped for a considerable period?
    Has anyone had the same issue?
    Are the emissions levels applicable to the models at this time available for Classic and P38?
    Thankyou
     
    Last edited: Jun 4, 2020
  2. kermit_rr

    kermit_rr Well-Known Member

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    what does it fail on, do you have the printout? You're on carbs, correct?
     
  3. Ratae

    Ratae Well-Known Member

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    walace58 and Grrrrrr like this.
  4. walace58

    walace58 Member

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    Not carbs EFI.
    Haven’t got all records but on last years pass it failed the 1st fast idle on CO f Lambda
    In 2018 it failed 1st & 2nd fast idles on CO, overall fail
    In 2017 the same and in 2016
     
  5. kermit_rr

    kermit_rr Well-Known Member

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    Assuming all sensors are working, tps etc, then the next likely reason for high CO is an exhaust leak somewhere, as far as I'm aware. The engine is in good condition, valves, compression etc?
     
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  6. walace58

    walace58 Member

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    Thanks I think I should be tested under Chart 2 for passenger cars first used before 1st Aug 1995. This seems to say that if it fails Basic Emissions test, it should be retested via specific EGA? database levels for the specific vehicle or failing that non cat levels. If my understanding and the document is correct, my station is not testing correctly?
     
    Last edited: Jun 4, 2020
  7. walace58

    walace58 Member

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    My garage is changing the lambda sensors although one or both was changed last year, but they say latest examples are notoriously short lived! Yes just been serviced and they are happy with condition.
     
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  8. Grrrrrr

    Grrrrrr Technician, Bodgit & Scarper Ltd

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    You could always put LPG on it and make sure you drive in on gas.
     
  9. mikieman

    mikieman Well-Known Member

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    This won’t help.... not even a little ...
    Here in the USA in my state up to a 95 (any vehicle) doesn’t have to have emissions
     
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  10. walace58

    walace58 Member

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    Then no room in the “boot”. lol.
     
  11. kermit_rr

    kermit_rr Well-Known Member

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    I have this problem
     
  12. walace58

    walace58 Member

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    Thanks to Kermit and Ratae for their advice.
    Changed both Lambda sensors and got through mot. Sensors were only a year old but my garage (over 40 years with LR) tells me quality pants these days.
    Showed the MOT inspector the flow chart, he said he cannot veer away from what he is told to do when he logs the car on be tested, it tells him exactly what to do!
     
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  13. kermit_rr

    kermit_rr Well-Known Member

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    Glad to hear you got sorted.
    If it's running rich continually then the o2 sensors will will soot up and in the long term be no good for the cat.
    If it burns oil, that's not good either
     
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