Jo

Hi, I went to MOT yesterday with the cossie...
After long discussions about my taillights that were not roadlegal and my tyres that are too big according to them, they had to admit there was nothing wrong!
Happy faces when they saw my CO-level was way too high (10% with 3% being the maximum).
So a red card... :-(

Now I tried my other P8 with pectel board. I removed the pectel board and installed my standard chip. Then a friend told me that was a big no-no because of adaptions that were made to the P8 in order to use the pectel board.

So back to the old P8...
When I start the engine CO-levels are 3%. But after a few seconds it goes up to 10% and it stays there, so now I was thinking there's a sensor somewhere that doesn't function anymore...

I have until 30/06/04 to pass MOT, so with so little time on my hands, I was thinking of installing a L8 because it is adjustable.
Can I use this without any other modifications or do I need a 2 bar mapsensor aswell and does anyone has an idea witch sensor could be busted??

Cheers, Jo

Jo

bttt

Mike Rainbird

iTrader: (3)

Jo,
It is most likely to be the blue sensor water temp sensor that you mentioned in your PM. Especially as you have just recently done the headgasket. This is normally when they let go, as people disturb the wires (which are probably brittle due to heat / age) when they remove / reinstall the head. Check these (and check it is even plugged in ).

Not sure of finis code for it, but Ford aren't cheap .

RichardPON

Mike,

I'm shocked to hear you talking some sense for once

Jo

thanks mike
will try that first
cheers

Jo

I replaced the ACT and ECT sensor with new ones, still the same 10% CO

Rene

for jo

Rene

for jo

mikey

Nice car what is the make of the car.

perplexed147

do u need an MOT in belgium?

Jo

yes we do have some kind of MOT over here

foreigneRS

have you got a lambda (o2) sensor? is it working and is it enabled in the map?

Jo

I've got a '92 Escort Cossie

yes i have a lambda sensor, recently replaced by a new one, and also new ACT and ECT sensors
it's my standard P8 with standard chip, so should work

foreigneRS

you're right, it should work.

Jo

but still something wrong, is there anything else that can influcence CO level?

foreigneRS

fuel pressure?

you've gone back to std ecu and chip, have you got std fuel pressure and std injectors?

air leak?

MAP sensor?

don't know really

Speedy G.

iTrader: (1)

His injectors are still standard and wether he uses the fast road chip or his standard chip --> it's all the same.

Pretty annoying problem.

Come on, help this guy out.

bigjim172000

iTrader: (1)

CLEAN YOUR AIR CLEANER. and then try it. IF it lowers a touch then try it without the air cleaner on and if it is then legal then your air cleaner is f*cked.

Youd never believe how many people try and adjust the mixture for a dirty air cleaner. SO many people do it to get it through the mot.

Jo

just cleaned my K&n cone filter, so can't be that either

bigjim172000

iTrader: (1)

then take it off and try the emissions. If it is within limits your air cleaner is fooked.

Have you cleaned your boost pipes out yet?

Try spraying carb cleaner around the inlet manifold and plenium. If you have a leak the car will stutter.

Jo

boost pipes are new samco's
will try the carb cleaner

bigjim172000

iTrader: (1)

any news mate?

Jo

Just put in another P8.
Now CO-level is 0.388%
CO2-level: 14.8%
Lambda: 1.023

Going to try MOT again tomorrow....

Speedy G.

iTrader: (1)

Jo

Cossie just passed MOT

smudgerz

Nice one!!!!!!

cossie1

thing is with the other P8 surely it's possable that your car is now running far too lean ?

my first thought would be check to see if you have a leaking injector

Jo

Yes, it is a bit lean, but will be adjusted by EA when I go for my stage 3
For now, I've put my "old" P8 back

Jo

what is a good lambda figure for not running lean? less than 1?

foreigneRS

nail
head

Jo

anyone?

foreigneRS

by definition, lambda greater than 1 is lean, less than 1 is rich.

you answered your own question, hence my rather sarcastic reply.

unless i haven't properly understood the question?

Jo

i didn't know if lean was more than 1 or less, was just guessing