steph118
Member
Registered: 11th Apr 06
Location: macclesfield
User status: Offline
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my car failed its mot because the emmisions were 1.86 any ideas how i can reduce them to what it should be? i have replaced lambda sensor but no different. cheers
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willhouse
Member
Registered: 11th Jul 06
Location: Sheffield
User status: Offline
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car? engine size? modifications? then might be able to help
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steph118
Member
Registered: 11th Apr 06
Location: macclesfield
User status: Offline
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1996 corsa sport 1.4 16v only had a k and n air filter put on and back box
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steph118
Member
Registered: 11th Apr 06
Location: macclesfield
User status: Offline
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sorry also there is a very small hole in exhaust by back axle as it keeps knocking on it
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PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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get the hole repaired should sort it out
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topshot_2k
Banned
Registered: 1st Dec 03
Location: Northampton Drives: Pug GTi-6
User status: Offline
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CAT?
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PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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quote:
Originally posted by topshot_2k
CAT?
doubtful
a small hole in an exhaust is plenty enough to knock the emissions out
i had a hole about 2/3 the size of a 5p piece in the pipe on mine, and that knocked them out enough to fail.
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uppy
Member
Registered: 8th Nov 06
Location: Hampshire
User status: Offline
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a hole in exhaust will effect the lambda if the co is 1.86 then its a good chance its the cat what are the full test results
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steph118
Member
Registered: 11th Apr 06
Location: macclesfield
User status: Offline
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it just says 1.86 exhaust emissions carbon monoxide content after 2nd fast idle excessive
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steph118
Member
Registered: 11th Apr 06
Location: macclesfield
User status: Offline
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and exhaust emits blue smoke during acceleration
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PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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quote:
Originally posted by steph118
and exhaust emits blue smoke during acceleration
your burning oil then, if during acceleration then most likely piston rings, that will also cause emissions to be out
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uppy
Member
Registered: 8th Nov 06
Location: Hampshire
User status: Offline
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sounds like you need some valve stem oil seals and a new cat if its the co content but dont put the cat on first the oil will clog it up. the valve seals only mean wipping the head of not a big jod
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steph118
Member
Registered: 11th Apr 06
Location: macclesfield
User status: Offline
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is it going to be expensive? do you have to take it to a garage?
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uppy
Member
Registered: 8th Nov 06
Location: Hampshire
User status: Offline
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depends on how confident you are i would charge about £400 if it was one of my customers so that will give you an idea. then the cat on top of that
[Edited on 21-11-2006 by uppy]
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