dean101287
Member
Registered: 22nd Jul 07
Location: Cardiff
User status: Offline
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Last week my car failed its MOT on a few things aswell as the emissions. I had a retest today and it passed everything apart from emissions. I fitted a new lambda sensor and the car hasnt been used alot because of the decat so the CAT is relatively new.
Any ideas how to bring it down. one CO reading was 0.6 where it should be 0.3.
[Edited on 11-03-2008 by dean101287]
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DAZ1985
Member
Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
User status: Offline
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fitting the cat should sort it
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mattk
Member
Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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your not doing bad running that with no cat, stick the cat back on and it should piss it
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dean101287
Member
Registered: 22nd Jul 07
Location: Cardiff
User status: Offline
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nooooo... the cat is on it now and it still not right
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dean101287
Member
Registered: 22nd Jul 07
Location: Cardiff
User status: Offline
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anyone?
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scottc1088
Member
Registered: 7th Mar 05
Location: Chesterfield Drives: Corsa Gsi, Cbr600
User status: Offline
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coolant temp sensor?
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FruitBooTeR
Member
Registered: 18th Jan 07
Location: Wolverhampton Drives: S15
User status: Offline
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This happed with mine Monday, had to fit a new CAT. It worked though got it down from 0.8 to 0.2
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Richardhhha
Member
Registered: 29th Sep 07
Location: Croydon, Greater London
User status: Offline
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are you running after market enhatst manifold? And are you taking it for a spanking before the test to get it bloody hot? Mine had this problem and i spent £260 sorting it out. Mind envolved new cat, hego, coolant temp sensor, manifold gasket, exhaust o ring, turned out it was the manifold causing all my problems....
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Fonz
Premium Member
Registered: 12th May 06
Location: Newbury, Berks
User status: Offline
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i'm thinking out loud...does a Cat need "running in"?
ie get warmed a few times/substantial amount of time before its at best efficency?
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FruitBooTeR
Member
Registered: 18th Jan 07
Location: Wolverhampton Drives: S15
User status: Offline
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No, i put a brand new one on didnt 'warm' it up worked fine.
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