My emission are way to high

  1. #1
    My emission are sky high

    How can I reduce them for mot

    I have put the oe air box on their is a cat

    4-2-1 down pipe although I don't know the condition of the lamba

    Any help greatly appreciated
  2. #2
    Try some redex and a long hard drive mate
  3. #3
    shame your not closer to me mate i know a very good mot tester if u can bang a new lambda in and check condition of the cat it could be shagged
  4. #4
    if readings are way to high even with cat fitted it will more than likely be the pre-cat lambda effecting the fueling. I had this on my old saxo. MOT tester said hes seen lower readings from cars without a cat which made us think it was the lambda, and it was.
  5. #5
    Quote:
    Originally Posted by rick_VTR View Post
    if readings are way to high even with cat fitted it will more than likely be the pre-cat lambda effecting the fueling. I had this on my old saxo. MOT tester said hes seen lower readings from cars without a cat which made us think it was the lambda, and it was.
    I used the lambda that came with my 4-2-1 I defo thinks that's it

    Will blows in the exhaust cause it to be high aswell
  6. #6
    Yes they will
  7. #7
    lol yeah a leaking exhaust will cause all sorts of problems.
  8. #8
    Ok thanks guys I'm gonna be ordering a new sensor and soldering everything then take it to get any blows sorted
  9. #9
    If the lambda was broken, wouldn't the engine warning light, light up?