rowen20
Member
Registered: 20th Mar 05
Location: shetland, scotland
User status: Offline
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ok put my car for the mot today and it failed on emissions, its a tuned c20xe fully rebuilt 6000 miles ago with gasflowed head also ported and polished, low comp pistons, kent fast road/rally hybrid spec cams, lightned and balanced flywheel/bottom end k+n cone filter and full custom powerflow exhaust, ecu is standard gte 16v in working order, can anyone gimmie any ideas how to get the emmisions down????......
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Joe
Member
Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
User status: Offline
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I take it you have a CAT on it?
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AdamF
Premium Member
Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline
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there more then likely doing a cat test (post 92) which a c20xe wasnt designed to pass.
you need to prove the engine is from a pre 92 car in order for them to test the emissions at the default limits
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rowen20
Member
Registered: 20th Mar 05
Location: shetland, scotland
User status: Offline
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no cat and theyre doin the pre 92 mot test as i took the reg docs for the gte in with me....
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rowen20
Member
Registered: 20th Mar 05
Location: shetland, scotland
User status: Offline
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anyone help?
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Rob B
Member
Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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put a cat on it, i know tis not ment to have 1 but it should pass then..
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AdamF
Premium Member
Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline
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there is a screw on the airflow meter which adjusts the co.
did it fail on co or hydrocarbons?
[Edited on 01-02-2006 by AdamF]
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rowen20
Member
Registered: 20th Mar 05
Location: shetland, scotland
User status: Offline
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jesus that would mean gettin a full exhaust too rob as its a custom s/s from manifold back.......
adam yea that correct failed on hydrocarbons, can you just adjust that with a co2 meter?
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AdamF
Premium Member
Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline
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did they rev it to between 2500 and 3000 revs to see if it passed then?
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rowen20
Member
Registered: 20th Mar 05
Location: shetland, scotland
User status: Offline
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no idea mate, i know the car wasnt hot tho
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AdamF
Premium Member
Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline
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if the hcs are too high then they are allowed to rev it between 2500 and 3000 revs to see if they come down.
hcs too high means its overfuelling
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rowen20
Member
Registered: 20th Mar 05
Location: shetland, scotland
User status: Offline
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ah i see thanks for your help mate greatly appreciated!
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