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  1. #361
    Activ8's Avatar Privileged
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    MOT Today on my 2001 AJT - it FAILED on Emissions!
    It wasn't helped by the fact that the inspector and assessor had turned up at 8AM and were there all day!

    Anyway not one to miss an opportunity I had a chat with the offending official.
    Last year my van would of been tested to 2.50m-1 recorded emissions this year its 0.80m-1 .
    WTF,.... even the inspector was smirking when he oozed that info out!
    He followed the muffled laughter with a comment along the lines of "that it probably would of never of registered that, even as a new vehicle!!"
    As I gritted my teeth and smiled charmingly I asked about the "rules" and he advised me to look here...
    https://www.gov.uk/government/public...mission-limits

    He then proceeded to show me the "plate value" showing the manufacturers emissions limit located on the bonnet slam panel.
    Heres a T4 example from a spare plate... look into the bottom right hand corner on this example it shows 1.1m-1. This is the emissions plate value.

    Cheekily I enquired what happens if that emissions plate isn't there to show the tester an emissions figure,.... peering over the top of his spectacles he then advised me of the default values....

    Vehicle first used , Type , Value

    1. First used before July 2008 , Non-turbo , 2.5m-1
    1. First used before July 2008 , Turbo , 3.0m-1
    2. First used on or after 1 July 2008 , All diesels , 1.5m-1
    3. First used on or after 1 January 2014 , All diesels , 0.7m-1

    Hmmm I thought,..... what on Earth am I to do?

    The mean absorption coeeficient after correction for my van was 1.2m-1 , with the low of 0.91m-1 and the highest reading of 2.08m-1 at 2200rpm.
    At 3.0m-1 it would be a walk in the park.....

    Hope this helps others with passing their emissions tests.
    Last edited by Activ8; 5th November 2018 at 07:18 PM.

  2. #362
    spedwing's Avatar Unemployed (Platinum)
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    So I might be thick ... how you gonna pass ??


    Sent from my iPhone using Just T4s

  3. #363
    Activ8's Avatar Privileged
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    If the sticker isn't there or you use your nicely painted colour coded slam panel (the one with no stickers) the tester will use the default values ie 3.0m-1 emissions level for a pre-2008 turbo'd van.

    Last edited by Activ8; 5th November 2018 at 09:24 PM.

  4. #364
    rjhoy02's Avatar Unemployed (Platinum)
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    Judicious bit of overspray then.....


    Sent from my iPad using Tapatalk

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    Activ8 (5th November 2018)

  6. #365
    spedwing's Avatar Unemployed (Platinum)
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    Ah cool ... 🤙 sorry having a slow day 🤪


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    Activ8 (5th November 2018)

  8. #366
    Activ8's Avatar Privileged
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    If you read the .gov.uk info - smoke is a major fail too.... its the latest update and must clarify the new emission rules.... I know mine is rollin coal on tick-over until the fuel gets to temp, so I may need to remap the first 1200rpm as well...


  9. #367
    rjhoy02's Avatar Unemployed (Platinum)
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    Yes I noticed that. Fortunately mine is clear


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  10. #368
    rjhoy02's Avatar Unemployed (Platinum)
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    Quote Originally Posted by Activ8 View Post
    If you read the .gov.uk info - smoke is a major fail too.... its the latest update and must clarify the new emission rules.... I know mine is rollin coal on tick-over until the fuel gets to temp, so I may need to remap the first 1200rpm as well...
    Vw do a good cheat, not letting it rev above 1500rpm when stationary. Volvo truck and bus have the same cheat and have done since the 90s......


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  11. #369
    Activ8's Avatar Privileged
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    Quote Originally Posted by rjhoy02 View Post
    Vw do a good cheat, not letting it rev above 1500rpm when stationary. Volvo truck and bus have the same cheat and have done since the 90s......


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    Really. Mine does.... tester revved it to 2200rpm during the emissions test....


  12. #370
    rjhoy02's Avatar Unemployed (Platinum)
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    Our golf has the emissions 'scandal' software on it still. Not fixing what ain't broke.

    Sent from my vernee_M5 using Tapatalk

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