MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
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what could be wrong and what could i do???
o2/lambda sensor?
CAT?
perol type/use additives?
pass rate is about 1.02, my car was about 1.09 and my mot man said its out quite a lot! 
Note- car does need a rebuild as it does BURN/SMOKE and LEAK a lot of oil!!
[Edited on 01-07-2005 by MoNkEy MaGiC]
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AdamF
Premium Member
Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline
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is the exhaust blowing. i take it that is the lambda that is too high?
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AdamF
Premium Member
Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline
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can you possibly scan me a copy of the emission report?
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X 60RSA
Member
Registered: 20th Aug 01
Location: Lincoln
User status: Offline
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Have you tried taking it for a serious hammering down the road? It often works, can you turn the fuel pressure down at all?
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Brett
Premium Member
Registered: 16th Dec 02
Location: Manchester
User status: Offline
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i heard something like taking the air filter off and goin for a blast on the motorway before the test.
correct me if im wrong but never encountered the problem myself
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MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
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i never knew taking the car for a hard thrash before the test would help bring the emmisions down!!
i took the car straight to the test centre and hasnt been driven for a day or two before then so i guess that didnt help!!
and i deffinately would not drive the car for any distance with out the airfilter  its their for a reason!!
plus my car has a induction kit fitted, but for the MOT i stuck the standard airbox back on
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Brett
Premium Member
Registered: 16th Dec 02
Location: Manchester
User status: Offline
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quote:
Originally posted by MoNkEy MaGiC
i never knew taking the car for a hard thrash before the test would help bring the emmisions down!!
i took the car straight to the test centre and hasnt been driven for a day or two before then so i guess that didnt help!!
and i deffinately would not drive the car for any distance with out the airfilter its their for a reason!!
plus my car has a induction kit fitted, but for the MOT i stuck the standard airbox back on
havin it off for a ten minute blast wont do any harm
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MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
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the 02 sensor was cleaned and a fuel/intake additive used, and i took the car for long thrash, still failed on emmisions quite badly!!!
i was told it will need a new CAT by the looks of things??
what you think??
i can get a uprated CAT with metal internals etc for £140, how does that sound??
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5chaap2k
Member
Registered: 20th Apr 05
Location: Schiedam, Netherlands
User status: Offline
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the catalystic converter is working best when it's hot.
take the car around for a drive before testing emissions 
no need to take of the filter or change the fuelpressure.. just ride around for a min or 20 before testing
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ryansss
Member
Registered: 27th Jan 05
Location: Southend
User status: Offline
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My gsi failed on the same thing. I took the induction kit off, and put my old box back on. I also sprayed 10 k boost into the engine, and then used some redex. Car ran like sh*t whilst it pumped all the crap out, but a couple of journeys later it was fine, and it passed.
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MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
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yes ive done ALL that.. i used redox and a inlet cleaner and put my old airbox on and then took it for a 50mile thrash!!! still failed quite badly!!
what else could it be beside the cat guys???
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5chaap2k
Member
Registered: 20th Apr 05
Location: Schiedam, Netherlands
User status: Offline
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lambda broken but any vauxhall could easely tell you that
i think you broke your pussy...
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corsapaul
Member
Registered: 23rd Jun 05
User status: Offline
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new engine if your car is burning to much oil no matter how much you thrash it it wont cum down.
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MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
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lamba sensor was cleaned and is working!
if it was not, the ecu light will come on! one way of checking... i if u disconnect your lamba sensor the ecu light will come on straight away 
"corsapaul" im saving up for a full rebuild/conversion soon
[Edited on 30-06-2005 by MoNkEy MaGiC]
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Black Stallion SRi
Member
Registered: 9th Dec 04
User status: Offline
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quote:
Originally posted by corsapaul
new engine if your car is burning to much oil no matter how much you thrash it it wont cum down.
If its oil and worset comes to worse run it with no oil for the test or bear min, my 1.4 had no oil when i got it. Dunno how yours would hold up lol
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corsapaul
Member
Registered: 23rd Jun 05
User status: Offline
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mot tester wont test a vehicle if it has no oil in coz it will be tappin its hole off
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corsapaul
Member
Registered: 23rd Jun 05
User status: Offline
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gsi's are prone for piston rings fcuking my girl friend has 1 and it wouldnt go thru. (same problem as you) so just get friendly wif a tester and he may just happen to put the probe up the wrong exhaust if u know what I mean. wink wink
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RKS
Member
Registered: 2nd Mar 04
Location: Gloucestershire UK
User status: Offline
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cleaning the lambda doesnt make any difference, possibly worth changing the lambda, i did this on my SRi i wasnt getting any ECU fault warnings that lambda was broke but it brought my emissions right down
You could also try and convince your tester that the engine is 91 spec LOL!
[Edited on 01-07-2005 by --Rikki--]
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MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
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ok so your saying the Lambda/O2 might need changing!!!!
they cost a bomb from vauxhall!!
Please check this link.. which one do i need??
http://www.buypartsby.co.uk/lambda_sensors.php
i think the CAT does need replacing also! i think its been on the car for over 5 years! on my scorpion cat-back exhaust about a year ago the middle silencer started to rattle and i think the CAT must have thrown somthing back into it, it still rattles today!!!!
Please check this link, is it worth me buying the Uprated one, which is £140 delivered or the standard one which is £90 delivered??
http://www.buypartsby.co.uk/catalytic_display.php?txtmodel=Corsa&Submit=Next&txtmake=VAUXHALL
[Edited on 01-07-2005 by MoNkEy MaGiC]
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