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      11-14-2012, 03:37 PM   #1
Dragon88
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Drives: BMW E92 320i M-Sport
Join Date: Jun 2012
Location: West London

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Failed MOT - Emissions Lambda

My E92 320i failed its MOT on emissions lambda reading. The sheet shows lambda upper limit reading as 1.03, my actual was 2.20.

Now after doing a bit of research, I come across:

http://www.bmwland.co.uk/forums/view...p?f=4&t=133386

and

http://www.bimmerforums.co.uk/forum/...ssions-t74667/

Can anyone here confirm if the lambda upper limit should be 4.0 on the N43 petrol engines?