Hi guys tried to get my 325 coupe MOTed and it only failed on emissions. i think the MAX is 0.3% and mine was 2.8%. The guy said it could be the lampda sensor, my car has been smelling of fuel for a while, and it does chuck out a bit of white smoke. For peoples experience is this the lampda sensor is does it involve changing the two cats on the car (hope not). What i guess im really asking is would a lampda sensor cause the emissions to be that high and to smell richly of petrol. Thanx again.