Omega Owners Forum - Failed Mot emissions

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Failed Mot emissions
06. Feb 2010 at 21:12

Hi all
The car failed MOT today on emmissions a little help needed
2.0 ltr 80.000 miles
runs great no problems at all,no eml light. no fault codes either
test result as follows
fast idle test engine speed =2880 rpm pass
co                                     =0.57 %vol fail    0.30
hc                                     =131          pass 200
lambda                               = 1.022    pass min 0.970 max 1.030

second fast idle
engine speed                      =3210 pass
co                                     =0.50 %vol fail max 0.30
hc                                     =121       pass    200
any ideas what to look for
Thanks all

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ians Omega Baron Offline Posts: 3452 Reading Drives: '02 3.2 est, '98 3.0 Elite sal	Re: Failed Mot emissions Reply #1 - 06. Feb 2010 at 21:17 Probably worth doing a paperclip test anyway (in the guide section I think) - if you've not done that. Beyond that a decent service (inc plugs and filter), fresh fuel and an italian tune up wouldn't go amiss
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rustym95 Omega Knight Offline carn't get up dont go out!! Posts: 1448 Rotherham south yorks Gender: Drives: 2.0i 16v CD Estate 95	Re: Failed Mot emissions Reply #2 - 06. Feb 2010 at 21:20 can you take the plugs out and see what colour they are mine failed like that a few years ago and it was the plugs gone. thet were bright red on the pole were the spark comes from.
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Darth Loo-knee Court Jester Offline "If you only knew how much he likes Backsides!" Posts: 20248 Stoke-on-Trent Gender: Drives: An Omega in the Pipeline.....	Re: Failed Mot emissions Reply #3 - 06. Feb 2010 at 21:21 Best bit of advice i could give you mate is to clear out your breathers system
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Pete. Omega King Offline Makes Driving Pleasurable Again . Posts: 10449 Nr J28 of the M1 Gender: Drives: Black 02 Omega DTi. Black 56 Monaro VXR. Red 97 Rover 114 SLi.	Re: Failed Mot emissions Reply #4 - 06. Feb 2010 at 21:21 When the tester's not looking pull his probe out (now now) & blow on it. Works every time Tried & tested
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Darth Loo-knee Court Jester Offline "If you only knew how much he likes Backsides!" Posts: 20248 Stoke-on-Trent Gender: Drives: An Omega in the Pipeline.....	Re: Failed Mot emissions Reply #5 - 06. Feb 2010 at 21:30 Pete. wrote on 06. Feb 2010 at 21:21: When the tester's not looking pull his probe out (now now) & blow on it. Works every time Tried & tested Give your breathers a clean out mate this is also "Tried & Tested"
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Entwood Omega King Offline Quietly Confident Posts: 13708 North Wiltshire Gender: Drives: 3.2 Elite (with LPG)	Re: Failed Mot emissions Reply #6 - 06. Feb 2010 at 21:41 Clean the breathers then "drive it like you stole it" - sometimes called "an italian tuneup" - for a good few miles ..... Cleans the whole system out and gets the cats REALLY hot .... this cleans them and restores efficiency on many occasions. Might help ..
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TestTrak Newbie Offline Posts: 12 Leicester Gender: Drives: Omega 2.0 GLS Wreg	Re: Failed Mot emissions Reply #7 - 06. Feb 2010 at 21:56 Thanks alot guys will get on it in the morning ive got ten days for a free re test,i think im going to change the plugs and clean out the breathers not done them for a while. do i give it the (italian tune up) just before i take it back for re test ? Thanks again Tim
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Entwood

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Re: Failed Mot emissions
Reply #8 - 06. Feb 2010 at 22:02

I'd give it one a couple of days before hand ... and on the way to the test ... the tester "should" allow the engine to run until at operating temp before doing the test .. but this might not put max temp into the cats... so if you get them nice and hot on the way there, as you are only having a retest they should still be hot when it's done ... If the car is left standing obviously they'll cool down ... nowt you can do about that I suppose .. Sad

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amba

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Drives: 1998 2.5 Elite Auto saloon.Fitted with 3.0 cams and Irmscher Alloys.

Re: Failed Mot emissions
Reply #9 - 06. Feb 2010 at 22:14

I had a similar failure on my annual MOT about 3 weeks ago.It failed on emissions and was advised that cat/lambda was at fault.
Added a fuel mixture from local factor to full tank of fuel and gave the car a really good blast down motorway with revs as high as possible.
Took car back to test centre for retest,and it passed with flying colours.When they asked had I replaced the parts...I told them no.....but only after I had the new test certificate.

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hotel21 Administrator Offline Posts: 12766 Doghouse Gender: Drives: into lamposts	Re: Failed Mot emissions Reply #10 - 06. Feb 2010 at 22:18 Remember when giving your car a high revs tune up/clear out, you do not need to do mega leptons of speed. The gearbox layout allows you to rev the nads of it in the low gears and not break the national speed limit....
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Pete. Omega King Offline Makes Driving Pleasurable Again . Posts: 10449 Nr J28 of the M1 Gender: Drives: Black 02 Omega DTi. Black 56 Monaro VXR. Red 97 Rover 114 SLi.	Re: Failed Mot emissions Reply #11 - 06. Feb 2010 at 22:21 Darth Loo-knee wrote on 06. Feb 2010 at 21:30: Pete. wrote on 06. Feb 2010 at 21:21: When the tester's not looking pull his probe out (now now) & blow on it. Works every time Tried & tested Give your breathers a clean out mate this is also "Tried & Tested" You may laugh, but it does work
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Albs Omega King Offline The upgrades are ongoing. Posts: 15083 North Essex Gender: Drives: 2000 2.5CD with LPG/Honda cbr600 FX	Re: Failed Mot emissions Reply #12 - 06. Feb 2010 at 22:26 So Pete, just to clarify.If your car fail its MOT you pull the testers "probe" out and blow ? ...................personally I would rather buy a few new parts, but each to their own.
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Pete.

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Re: Failed Mot emissions
Reply #13 - 06. Feb 2010 at 22:42

Albs wrote on 06. Feb 2010 at 22:26:

So Pete, just to clarify.If your car fail its MOT you pull the testers "probe" out and blow ? Shocked

...................personally I would rather buy a few new parts, but each to their own. Wink

I knew it would end like this Grin

My mates Trans-Am failed badly on emissions. The tester blew on the probe, stuck it back in the exhaust & it passed with flying colours.

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Darth Loo-knee

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Re: Failed Mot emissions
Reply #14 - 06. Feb 2010 at 22:54

Pete. wrote on 06. Feb 2010 at 22:42:

Albs wrote on 06. Feb 2010 at 22:26:

So Pete, just to clarify.If your car fail its MOT you pull the testers "probe" out and blow ? Shocked

...................personally I would rather buy a few new parts, but each to their own. Wink

I knew it would end like this Grin

My mates Trans-Am failed badly on emissions. The tester blew on the probe, stuck it back in the exhaust & it passed with flying colours.

Must have had Camel Breath Grin

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