Page 1 of 1
failed emissions :(
Posted: Tue Nov 18, 2008 11:59 am
by cro320
I failed bloody emission test today...
not quite sure where is the problem, cause car runs great and pulls like a train
HC bad at idle 0.3 is good, mine is 0.6%
CO bad at idle 0.5 is good, mine is 0.8%
any ideas what to check?
Re: failed emissions :(
Posted: Tue Nov 18, 2008 1:52 pm
by clipper
First I would check that its idling properly.
Does the throttle butterfly close as it should or is the car "idling" with a partly open throttle (a common bodge on cars with idle problems, like mine
).
Re: failed emissions :(
Posted: Tue Nov 18, 2008 2:35 pm
by jbee
a tune up could work too
Re: failed emissions :(
Posted: Tue Nov 18, 2008 4:15 pm
by Alex
take it to an MOT guy you know
what rpm is it idleing at, i suppose if its ideling to high it could cause high emissions
Re: failed emissions :(
Posted: Tue Nov 18, 2008 4:20 pm
by town325i
put a clean air filter in it if its not been change for a long time
Re: failed emissions :(
Posted: Tue Nov 18, 2008 5:24 pm
by djk
jbee wrote:a tune up could work too
Do you employ a piano tuner for one of those then?
Posted: Tue Nov 18, 2008 5:26 pm
by cro320
idles perfectly at 700rpm, once had an idle problem and my bmw service done the job, something about TPS was wrong, now works great.
Last month I changed: air filter, fuel filter, sparks, oil and valve adjustment
Re:
Posted: Tue Nov 18, 2008 6:09 pm
by clipper
Sounds like its just the adjuster screw on the AFM that needs setting then. Unless its running rich at idle.....
Re:
Posted: Tue Nov 18, 2008 7:58 pm
by cro320
clipper wrote:Sounds like its just the adjuster screw on the AFM that needs setting then. Unless its running rich at idle.....
well mate, to be sure I am going to visit my bmw service for these delicant jobs
thanks