Emissions how to help please?

Paul-Tll · August 22, 2003, 06:05:18 PM

Had the TII mot done to day and failled very bad on
emissions:
H.C. Level Very high
C.O. Level very high
Passed on everything else so what do I do now?
I thought we had some kind of minor exemption?
The car has no cats and no airpump and is a 91FC
Can I \'tweek\' something to lean it out for the mot and put
it back after?
Any advice please
Thanks Paul..

MikeLMR · August 22, 2003, 06:09:56 PM

only pre \'87 get a break on the emmissions.

Paul-Tll · August 22, 2003, 08:09:21 PM

Thought that was the case, try to argue with the tester a bit
he said the same. Cats off are ok though as its pre 92
I think that bits right.
I think if i got me old cats back on it would be still be way over
and prob. clog them up
Levels at 8% I think 2% is the allowance but not sure.
need a fix for this very quick.
Thanks Paul..

MikeLMR · August 22, 2003, 08:17:42 PM

you can remove the cats on a pre July(?) \'92 car but it still needs to pass the test (well duh)

I would guess its the lack of Cats and air pump thats the cause of the high emissions at idle.

What mods do you have on the car ? if you have an ECU that can be tuned maybee you can take some fuel out of the idle maps and raise the rev\'s slightly. You might want to make the MOT station re-zero the machine before they do the test too.

Not sure if it would help but my dad said the only way most RX\'s would pass an MOT is to take them out for a hard drive and test them while they are still red hot !!

appart from that I\'m not sure as I\'m not clued up on FI , turbo\'s and Catalysts

Mike

t2rew · August 23, 2003, 05:20:22 PM

try Â£Â£Â£Â£Â£Â£Â£Â£Â£Â£Â£Â£Â£Â£Â£Â£

to mot man

MikeLMR · August 23, 2003, 05:22:48 PM

Booooooo hissssssssssss they don\'t do things like that do they

(my old man works for the VI !!)

Mike

t2rew · August 23, 2003, 05:48:42 PM

i know three mot men so when my car is due for it i will have to get it all running up to the industry standard

:rollin :rollin :rollin :rollin :rollin :rollin

tsh · August 24, 2003, 11:35:10 AM

Sounds like a sensor problem... Assuming you\'ve got the stock ECU, at idle, it\'s supposed to run closed loop using the lambda sensor, so CO will be pretty much spot on - unless something\'s broken. Might be a bit tricky to diagnose if you\'re not up on car electrics though!

The other possibility is an oil leak from the turbo - which probably means smoke will be visible at idle...

Sean

Paul-Tll · August 25, 2003, 12:10:48 AM

Well its its like this, the air pump is going back on (and air box cos the
filter bit) Im gonner give it a good kicking down the motorway
clear it through keep it hot and see what happens Tues or weds
Ill let you know what happens (this is for all of us)
BTW air pump off & no cats 7-8%
Air pump on 3-4%

?? lets see?

??
Watch this space!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Wishing myself goodluck Paul..