Emissions Fail - Buggered Cat?
Emissions failed on MOT but I went to a freindly garage! :norty:
My mechanic said it was running on 3, but I unplugged every coil pack and it dropped in revs everytime, so would suggest its not. It runs fine and pulls like a train! Its the first MOT since owning the car - but the previous MOT emissions sheet says it was fine before. What else could cause it to fail? The car still has the OEM cat. :wonder: Thanks |
you could always do a rolling road session - should highlight any issues and very useful anyway
|
Originally Posted by Tucker82
(Post 8708655)
Emissions failed on MOTIts the first MOT since owning the car -What else could cause it to fail? The car still has the OEM cat. :wonder:
Thanks got mine from here Just Lambda, Suppliers of Bosch and NTK lambda sensors including zirconia and titania sensors by post.. |
Originally Posted by b13bat
(Post 8709564)
Buggered o2/lambda sensor mate, causing you to run rich, mine failed the same.
got mine from here Just Lambda, Suppliers of Bosch and NTK lambda sensors including zirconia and titania sensors by post.. |
Originally Posted by Fangoria
(Post 8709277)
you could always do a rolling road session - should highlight any issues and very useful anyway
|
Only way i knew the lambda had gone was because my AFR meter stopped cycling, and mpg was prob down but nothing really noticable.
You could always test it with a multimeter:idea::thumb: |
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