ryepye5
Member
Registered: 8th Aug 11
Location: exeter
User status: Offline
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Can anyone help me my emissions failed on the mot today the read out was
66% co but a pass should be 30%. It past on idle but failed on both fast idles any help would be great
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Jed D
Member
Registered: 15th Mar 11
Location: Durham
User status: Offline
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tip the tester
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Gary
Premium Member
Registered: 22nd Nov 06
Location: West Yorkshire
User status: Offline
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Lambda?
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Phillips_91
Member
Registered: 20th Jan 10
Location: Blackpool. Drives: Sapphire Black Mk4 Astra 1.8
User status: Offline
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cat if it's co
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AdamF
Premium Member
Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline
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CAT worse case,
you could try a fuel cleaner and get it very very hot and try it but doesnt always work, and you will have to get the tester to do it without actually retesting it otherwise you will have to have another full Mot
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ryepye5
Member
Registered: 8th Aug 11
Location: exeter
User status: Offline
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So if its high co it must be the cat?
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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leaking exhaust?
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JaffaTB
Member
Registered: 7th Oct 09
Location: Sheffield, South Yorkshire
User status: Offline
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mine passed without a cat
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daymoon
Premium Member
Registered: 1st Aug 08
Location: Selby, North Yorkshire
User status: Offline
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it's out by miles... lambda...
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AdamF
Premium Member
Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline
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quote: Originally posted by ryepye5
So if its high co it must be the cat?
not just high co no, but a co reading like that with everything else a pass then its likely to be the CAT
steve a leaking exhaust would make the lambda reading high
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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ok m8 no beef
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Phillips_91
Member
Registered: 20th Jan 10
Location: Blackpool. Drives: Sapphire Black Mk4 Astra 1.8
User status: Offline
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quote: Originally posted by daymoon
it's out by miles... lambda...
it would show on the emmisions sheet lambda fail
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daymoon
Premium Member
Registered: 1st Aug 08
Location: Selby, North Yorkshire
User status: Offline
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quote: Originally posted by Phillips_91
quote: Originally posted by daymoon
it's out by miles... lambda...
it would show on the emmisions sheet lambda fail
i had exactly same on my E36. lambda just passed but the CO level was 2 times over the limit. new lambda sorted it.
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