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Help please failed MOT CO2 emissions
- Sasquatch
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27 Mar 2015 18:53 #141482
by Sasquatch
Help please failed MOT CO2 emissions was created by Sasquatch
Hi,
I have just purchased a Suzuki Jimny 1999 1300 16V. Its done 110000 miles.
Took it for an MOT today and failed on high CO2 emissions. The lowest readings,
CO2 0.54% should be under 30%
HC 144ppm this was under the 200 ppm limit
Lambda 1.02 the limit 0.97-1.03.
The Jimny had not been used for around a year before I purchased it, I have changed oil and oil filter. Air filter is OK.
It did white smoke a bit when I got it but now after a run the exhaust runs clear.
Is there anything I can do to get the CO2 emissions down ?
Thanks.
I have just purchased a Suzuki Jimny 1999 1300 16V. Its done 110000 miles.
Took it for an MOT today and failed on high CO2 emissions. The lowest readings,
CO2 0.54% should be under 30%
HC 144ppm this was under the 200 ppm limit
Lambda 1.02 the limit 0.97-1.03.
The Jimny had not been used for around a year before I purchased it, I have changed oil and oil filter. Air filter is OK.
It did white smoke a bit when I got it but now after a run the exhaust runs clear.
Is there anything I can do to get the CO2 emissions down ?
Thanks.
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- markyp2000
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27 Mar 2015 19:28 #141488
by markyp2000
Replied by markyp2000 on topic Help please failed MOT CO2 emissions
Some times the cat need to be realy hot it may need a good hard run up a bypass to get it hot to clean it out or take the cat off and see if there is any thing init
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- Sasquatch
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27 Mar 2015 20:01 #141493
by Sasquatch
Replied by Sasquatch on topic Help please failed MOT CO2 emissions
I gave it a good clean out on the way there and had it running while I was waiting. It did get hot the MOT guy tried a couple of times to get it through.
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27 Mar 2015 21:43 #141500
by Keithy
Replied by Keithy on topic Help please failed MOT CO2 emissions
He needs to try harder....maybe try another car at the side of yours with the probe in itSasquatch wrote: I gave it a good clean out on the way there and had it running while I was waiting. It did get hot the MOT guy tried a couple of times to get it through.

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- rogerzilla
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28 Mar 2015 07:43 #141507
by rogerzilla
Replied by rogerzilla on topic Help please failed MOT CO2 emissions
Sounds as if the cat itself needs replacing. They don't always last the life of the car. Aftermarket ones are about £200, a SGP one is probably about a million quid plus three Faberge eggs and a Picasso :laugh:
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- trextr7monkey
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28 Mar 2015 12:09 #141517
by trextr7monkey
Replied by trextr7monkey on topic Help please failed MOT CO2 emissions
Our old one similar age and similar prob Last year even with fresh oil cat cleaner etc it was always just outside limits. New cat sorted it and it passed ok this year too.
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