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td5 emissions

Discussion in 'TD5' started by doodle bug, Jun 14, 2011.

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  1. doodle bug

    doodle bug Well-Known Member

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    I removed the EGR from our td5 defender about 2 months ago and it seemed to run slightly better.....but now MOT time is drawing close ive been informed by our not so friendly mot man that it wont pass the emission test without the egr being refitted :(.. is this true or just another load of main dealer crap ?
     
  2. minidod

    minidod Active Member

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    Well I took my TD5 Disco for an MOT at the end of last month and it passed with no problems, and that's with no EGR and no CAT so the MOT tester is talking bollocks.
     
  3. Clanforbes

    Clanforbes New Member

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    As Minidod says, he's talking bollocks, I'd take my custom elsewhere.
     
  4. lynall

    lynall Well-Known Member Full Member

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    Hes talking crap as the egr system doesnt even work until the engine is up to temperature and you are driving along at light load so the egr valve can open and run some gas back into the inlet system.
    Why did you even tell him?


    Lynall
     
  5. teddykiller

    teddykiller New Member

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    I've no EGR no Cat and no silencer just a straight through stainless steel exhaust and mine passed no problem at all.
     
  6. 50 pence

    50 pence New Member

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    Diesels only have to pass a smoke test.

    As the others have said, he,s talking bollards !.

    Del.
     
  7. Shifty1962

    Shifty1962 Well-Known Member

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    Correct! Find another testing station who know what they're talking about.

    Your engine will be running cleaner and more efficiently in terms of smoke particulates than it ever did with an operating EGR system because the combustion will have more oxygen to burn and hence produce less soot. By feeding the lower oxygen exhaust gas into the intake, diesel EGR systems lower combustion temperature, reducing emissions of nitrous oxides because NOx forms primarily when a mixture of nitrogen and oxygen is subjected to high temperature. This makes combustion less efficient, compromising economy and power. Diesel EGR also increases soot production. EGR systems can also add abrasive contaminants and increase engine oil acidity, which in turn can reduce engine longevity.
     
    Last edited: Jun 14, 2011
  8. doodle bug

    doodle bug Well-Known Member

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    Many thanks guys..just as i thought ! a load of crap.
     
  9. dan642

    dan642 New Member

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    Just removed the EGR on mine, seems to run better.
    Bloody should do aswell after seeing how clogged up with gunk it was.
     
  10. v8landyman

    v8landyman Active Member

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    Is that the middle box you have replaced with a straight pipe?

    I take it there's no increase in noise then.
     
  11. teddykiller

    teddykiller New Member

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    It was a custom made stainless steel exhaust front to back with no silencers, more power and sounds great :D
     
  12. brainboy81

    brainboy81 New Member

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    had 2 mots since i done my egg and decat never had an issue.
     
  13. ZippyIII

    ZippyIII Member

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    EGR removed and emissions reading on MOT was 0.6, less than 3 is a pass. It was 2.6 before the injectors were serviced and EGR removed
     
  14. dan642

    dan642 New Member

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    Mine failed at 4.9 before I removed the EGR then it passed with 2.1
    Was really full of Sh!te.
    One day I will also clean out the inlet manifold because that was really manky inside.
     
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