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Car Failed MOT on Exhaust Emissions Test
Hi Guys,
New to the Forum,
I Put my car through its MOT this morning and it has failed on the Fast Idle Test
The readings came back as follows:
1st Test
LIMITS ACTUAL VALUE
CO: Max 0.300% 0.500% FAIL
HC: Max 200 ppm 112 ppm PASS
Lambda: 0.970 - 1.030 1.089 ppm FAIL
2nd Test
LIMITS ACTUAL VALUE
CO: Max 0.300% 0.526% FAIL
HC: Max 200 ppm 112 ppm PASS
Lambda: 0.970 - 1.030 1.165 ppm FAIL
Any ideas as to what the first port of call should be? I haven't changed oil or oil filter for over 6000 miles (the car is a vauxhall corsa, 98 reg, 1.4L - 69,000 miles).
Would this be worth doing and then putting in for a re-test before going to a garage and getting them to look at it?
Thanks
New to the Forum,
I Put my car through its MOT this morning and it has failed on the Fast Idle Test

The readings came back as follows:
1st Test
LIMITS ACTUAL VALUE
CO: Max 0.300% 0.500% FAIL
HC: Max 200 ppm 112 ppm PASS
Lambda: 0.970 - 1.030 1.089 ppm FAIL
2nd Test
LIMITS ACTUAL VALUE
CO: Max 0.300% 0.526% FAIL
HC: Max 200 ppm 112 ppm PASS
Lambda: 0.970 - 1.030 1.165 ppm FAIL
Any ideas as to what the first port of call should be? I haven't changed oil or oil filter for over 6000 miles (the car is a vauxhall corsa, 98 reg, 1.4L - 69,000 miles).
Would this be worth doing and then putting in for a re-test before going to a garage and getting them to look at it?
Thanks

0
Comments
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1st thing I'd look for with those results is a leak in the exhaust system.0
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If it's not leaking, then new lambda sensor.0
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Try a new air filter (dirt cheap for that year of Corsa) and a bottle of CATACLEAN in the tank, followed by a good, spirited drive to get the cleaner through the system.
Get it good and hot and then present it immediately for the MOT emissions test.
Cheapest options first!PLEASE NOTE:
I limit myself to responding to threads where I feel I have enough knowledge to make a useful contribution. My advice (and indeed any advice on this type of forum) should only be seen as a pointer to something you may wish to investigate further. Never act on any forum advice without confirmation from an accountable source.0 -
Would I be right to hazard a guess at mostly short journeys?
If so, bang some fresh fuel in and give it a good hoofing....“I may not agree with you, but I will defend to the death your right to make an a** of yourself.”
<><><><><><><><><<><><><><><><><><><><><><> Don't forget to like and subscribe \/ \/ \/0 -
Italian tune-up FTW :T0
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