#1: failing an MOT on emissions now what ? :( Author: 138Andy, Location: NottsPosted: Fri Mar 09, 2012 3:25 pm ---- Heyhey
my car failed the MOT yesterday on emissions
im unsure what else i could do it drop them i gave it a full service and even bought a new cat but the results were
FAST IDLE SPEED ( Min-2000 Max-3000 ) Actual Reading 1646 = FAIL
FAST IDLE CO % ( Max-0.30 ) Actual Data 1.61 = FAIL
SECOND FAST IDLE CO ( Max-0.30 ) Actual Data 1.19 = FAIL
IDLE CO% ( Max-0.50 ) Actual Data 3.19 = FAIL
#2: Re: failing an MOT on emissions now what ? :( Author: E5GDM, Location: EssexPosted: Fri Mar 09, 2012 3:26 pm ---- What did the garage suggest?
#3: Re: failing an MOT on emissions now what ? :( Author: 138Andy, Location: NottsPosted: Fri Mar 09, 2012 3:27 pm ---- he didnt he just mugged me off saying its like my exhaust is f****d but i fitted the new one 2 days before the mot and iv been back to the shop and they say its fine :/
#4: Re: failing an MOT on emissions now what ? :( Author: iainlovatt, Posted: Fri Mar 09, 2012 3:31 pm ---- put expensive v power fuel in it drive it for 1 hr before taking it back to him and get him to retest it, that should do the trick!
#5: Re: failing an MOT on emissions now what ? :( Author: Alex90, Location: Newcastle-under-lymePosted: Fri Mar 09, 2012 3:32 pm ---- diesel or petrol?
i bought liqui moly injectors cleaner and she pass it straight thru
#6: Re: failing an MOT on emissions now what ? :( Author: 138Andy, Location: NottsPosted: Fri Mar 09, 2012 3:39 pm ---- petrol 2.0l gti
#7: Re: failing an MOT on emissions now what ? :( Author: twitch169, Location: lincolnPosted: Fri Mar 09, 2012 3:40 pm ---- put in some petrol magic and some higher octane fuel and thrash the balls off it down a motorway should clean the crap out works for me and other cars ive had
#8: Re: failing an MOT on emissions now what ? :( Author: 138Andy, Location: NottsPosted: Fri Mar 09, 2012 3:55 pm ---- sweet cheers its in for a retest next weekend so fingers crossed
#9: Re: failing an MOT on emissions now what ? :( Author: Steve206, Location: UKPosted: Fri Mar 09, 2012 4:09 pm ---- Genuine Cat? For emmision failure i would say the cat is at fault, especially a cheaper one. any engine lights? When was the car last serviced? Last edited by Steve206 on Fri Mar 09, 2012 4:13 pm; edited 1 time in total
#10: Re: failing an MOT on emissions now what ? :( Author: Edward, Location: In the garagePosted: Fri Mar 09, 2012 4:12 pm ---- Fit a decent aftermarket exhaust and take the car to a garage that will overlook exhaust emissions!
#11: Re: failing an MOT on emissions now what ? :( Author: jimm, Location: doncasterPosted: Fri Mar 09, 2012 4:25 pm ---- take it to a different mot garage
#12: Re: failing an MOT on emissions now what ? :( Author: 138Andy, Location: NottsPosted: Fri Mar 09, 2012 4:36 pm ---- might have to make friends with some one who can just pass me a mot
#13: Re: failing an MOT on emissions now what ? :( Author: Seabook, Posted: Sat Mar 10, 2012 3:00 am ---- did they check the O2 sensor at all?
#14: Re: failing an MOT on emissions now what ? :( Author: gazza82, Location: South BucksPosted: Sat Mar 10, 2012 5:35 am ---- Yes, it's likely your lambda/o2 sensor is shafted ... was it disturbed when you had the new exhaust fitted?
Our 206CC 2.0 has two ... one pre-cat, one post-cat ... but until I get PP working I can't tell which is screwed .. one is, the code reader I have tells me!
#15: Re: failing an MOT on emissions now what ? :( Author: 138Andy, Location: NottsPosted: Sat Mar 10, 2012 8:19 am ---- iv been to see him today he said bring it in next weekend for the retest and he will adjust the readings for a pass
#16: Re: failing an MOT on emissions now what ? :( Author: Lee, Location: EnglandPosted: Sat Mar 10, 2012 8:22 am ---- Just buy the geezer a pint
#17: Re: failing an MOT on emissions now what ? :( Author: Seabook, Posted: Sat Mar 10, 2012 9:03 am ---- then why bother to ask it in here? lol
you will have worse mpg if you don't get it fixed
#18: Re: failing an MOT on emissions now what ? :( Author: 138Andy, Location: NottsPosted: Sat Mar 10, 2012 10:00 am ---- if you seen me drive you wouldn't care about mpg ?
#19: Re: failing an MOT on emissions now what ? :( Author: kandlbarrett, Location: SwindonPosted: Sun Mar 11, 2012 10:13 am ---- Personal opinion but it is rather foolish passing the MOT this way. A car not running right will knacker your new cat. I suggest, as others have, that you probably have a sensor fault MAF / MAP or Lambda.
From the readings it is, for a modern engine, running quite rich and at today's fuel prices that will soon add up and long term the fuel costs will outweigh sorting the sensor let alone the cost of another knackered cat.
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