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Author Topic: MOT fail including emissions  (Read 3356 times)

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pigtown

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MOT fail including emissions
« on: 31 January 2011, 19:19:13 »

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

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Re: MOT fail including emissions
« Reply #1 on: 31 January 2011, 19:22:06 »

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

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Re: MOT fail including emissions
« Reply #2 on: 31 January 2011, 21:09:43 »

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

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Re: MOT fail including emissions
« Reply #3 on: 31 January 2011, 21:11:35 »

Quote
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
« Last Edit: 31 January 2011, 21:12:37 by entwood »
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pigtown

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Re: MOT fail including emissions
« Reply #4 on: 31 January 2011, 21:47:00 »

Hi Nige,  Thanks for the offer I might give you a call later in the week.
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pigtown

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Re: MOT fail including emissions
« Reply #5 on: 01 February 2011, 18:32:46 »

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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Re: MOT fail including emissions
« Reply #6 on: 01 February 2011, 19:27:34 »

Quote
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

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Re: MOT fail including emissions
« Reply #7 on: 01 February 2011, 19:28:12 »

Was that on petrol or lpg?
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pigtown

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Re: MOT fail including emissions
« Reply #8 on: 01 February 2011, 19:38:43 »

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

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Re: MOT fail including emissions
« Reply #9 on: 01 February 2011, 19:45:23 »

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

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Re: MOT fail including emissions
« Reply #10 on: 01 February 2011, 19:50:17 »

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

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Re: MOT fail including emissions
« Reply #11 on: 01 February 2011, 19:53:12 »

Mine were like that on both petrol and LPG, failed emissions, changed the CAT and it was sorted.
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pigtown

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Re: MOT fail including emissions
« Reply #12 on: 01 February 2011, 19:58:35 »

How much is a new cat?
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RobG

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Re: MOT fail including emissions
« Reply #13 on: 01 February 2011, 20:04:48 »

Quote
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

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Re: MOT fail including emissions
« Reply #14 on: 01 February 2011, 20:50:11 »

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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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