Omega Owners Forum - MOT fail including emissions

pigtown

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MOT fail including emissions
31. Jan 2011 at 19:19

Failed the MOT today with:
Front lower suspension arms excessive play in ball joint, Front track rods end ball pin shank loose, Parking brake has no reserve travel,
Exhaust emissions failed Fast Idle lambda 1.19 (limits .97 to 1.03), 2nd fast idle CO level 2.05% (max 0.3), HC level 526 (limit 200), Lambda .93, Natural idle 1.92% (limit 0.5).

The emissions worry me - any ideas (lambda sensor, CAT)?

Now I know why the alignment is out - need to fix these before going to WIM.

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TheBoy Administrator Offline TBE has an MOT! Posts: 64817 Brackley, Northants Gender: Drives: 98 MV6, 03 Elite, 00 25, 89 ZX10	Re: MOT fail including emissions Reply #1 - 31. Jan 2011 at 19:22 I'd like to see live data on that before condemming anything. Got access to a decent code reader? I'm kind of expecting all the BLMs for idle and partial load to be stuck at 255...
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pigtown Junior Member Offline Posts: 103 swindon Gender: Drives: 2.2 petrol/LPG	Re: MOT fail including emissions Reply #2 - 31. Jan 2011 at 21:09 The only code reader I know of near me is Entwood. He helped me with some diagnosis last year. I'll try the MOT station to see if they can diagnose any better.
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Entwood Omega King Offline Quietly Confident Posts: 13708 North Wiltshire Gender: Drives: 3.2 Elite (with LPG)	Re: MOT fail including emissions Reply #3 - 31. Jan 2011 at 21:11 pigtown wrote on 31. Jan 2011 at 21:09: The only code reader I know of near me is Entwood. He helped me with some diagnosis last year. I'll try the MOT station to see if they can diagnose any better. Always willing to try ... I'm around Thursday/Friday if that helps .. or after 6 any evening
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pigtown Junior Member Offline Posts: 103 swindon Gender: Drives: 2.2 petrol/LPG	Re: MOT fail including emissions Reply #4 - 31. Jan 2011 at 21:47 Hi Nige, Thanks for the offer I might give you a call later in the week.
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pigtown Junior Member Offline Posts: 103 swindon Gender: Drives: 2.2 petrol/LPG	Re: MOT fail including emissions Reply #5 - 01. Feb 2011 at 18:32 The MOT station diagnosed further and said both Lambda sensors need replacing and quoted £400... Apparently the do not switch quick enough. I'm not convinced they know what they are talking about though so will take up Entwood's kind offer later this week.
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Marks DTM Calib

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Drives: Astra J, Mum Bus, Dexta Tractor, 108 DMU wip

Re: MOT fail including emissions
Reply #6 - 01. Feb 2011 at 19:27

pigtown wrote on 01. Feb 2011 at 18:32:

The MOT station diagnosed further and said both Lambda sensors need replacing and quoted £400... Apparently the do not switch quick enough. I'm not convinced they know what they are talking about though so will take up Entwood's kind offer later this week.

I concur!

Get some live data including coolant temp sensor readings.

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Marks DTM Calib Administrator Offline Ex Member Posts: 25671 Northern Hemisphere Gender: Drives: Astra J, Mum Bus, Dexta Tractor, 108 DMU wip	Re: MOT fail including emissions Reply #7 - 01. Feb 2011 at 19:28 Was that on petrol or lpg?
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pigtown Junior Member Offline Posts: 103 swindon Gender: Drives: 2.2 petrol/LPG	Re: MOT fail including emissions Reply #8 - 01. Feb 2011 at 19:38 It was running in LPG for the MOT. I normally run LPG though - would that make a difference?
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Marks DTM Calib Administrator Offline Ex Member Posts: 25671 Northern Hemisphere Gender: Drives: Astra J, Mum Bus, Dexta Tractor, 108 DMU wip	Re: MOT fail including emissions Reply #9 - 01. Feb 2011 at 19:45 It does raise a question as the petrol setup has better closed loop control.......the question is, was the lpg setup working correctly.
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pigtown Junior Member Offline Posts: 103 swindon Gender: Drives: 2.2 petrol/LPG	Re: MOT fail including emissions Reply #10 - 01. Feb 2011 at 19:50 The LPG is only a mixer system. I have had a problem for a while when starting on petrol first thing it splutters a bit and runs better when switched to LPG.
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mark.adams Senior Member Offline Posts: 695 Cambridgeshire Gender: Drives: omega 2.2CD +LPG	Re: MOT fail including emissions Reply #11 - 01. Feb 2011 at 19:53 Mine were like that on both petrol and LPG, failed emissions, changed the CAT and it was sorted.
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pigtown Junior Member Offline Posts: 103 swindon Gender: Drives: 2.2 petrol/LPG	Re: MOT fail including emissions Reply #12 - 01. Feb 2011 at 19:58 How much is a new cat?
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RobG Omega Lord Offline I might have a link, pic or part number for that Posts: 7968 Bristol Gender: Drives: 53 plate 2.2 CD auto	Re: MOT fail including emissions Reply #13 - 01. Feb 2011 at 20:04 pigtown wrote on 01. Feb 2011 at 19:58: How much is a new cat? Bloody expensive from VX. IF your cat is fubared better off trying to source a S/H genuine
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Marks DTM Calib Administrator Offline Ex Member Posts: 25671 Northern Hemisphere Gender: Drives: Astra J, Mum Bus, Dexta Tractor, 108 DMU wip	Re: MOT fail including emissions Reply #14 - 01. Feb 2011 at 20:50 pigtown wrote on 01. Feb 2011 at 19:50: The LPG is only a mixer system. I have had a problem for a while when starting on petrol first thing it splutters a bit and runs better when switched to LPG. And so the alarm bells ring.......I wonder what the block learn values are....
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