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Escort Cosworth Problem - Emissions

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Old 07-01-2009, 09:38 AM
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phil_rs
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Default Escort Cosworth Problem - Emissions

I have a 1992 K reg, escos with the usual stage 3 spec; greens, -31, 3 bar, bayjoo chip, s/s exhaust, rs500 style intercooler etc. I took it for MOT yesterday and the CO reading should be no more than 3.5 % for a non-cat car but mine is reading closer to 11% The MOT guy wasn't much help but said it could be the lamba sensor as did a few people I know. Can anyone else shed any light on this?
Old 07-01-2009, 09:40 AM
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Coldo
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I had problems with my old S2, the cheapest, easiest way around it is to find an MOT tester who is willing to bypass that area of the test.
Old 07-01-2009, 09:41 AM
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madmack99
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Originally Posted by Coldo
I had problems with my old S2, the cheapest, easiest way around it is to find an MOT tester who is willing to bypass that area of the test.
agreed unless there is something you can do and be bothered to do
Old 07-01-2009, 09:42 AM
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It might be the idle control valve, you can just disconnect it whilst the test is going on, they do give a false reading if they are faulty.

HTH.
Old 07-01-2009, 09:55 AM
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Hi Phil,

has the car been re-mapped yet as it was running well rich when i saw you last in it? Could be the lambda, but could be the chip too or a temp sensor/temp sensor wiring problem. Saw one once where the ecu thought the engine was constantly "cold" so was constantly chucking loads of fuel in.

I'm no expert at all, but i'd get that looked at as if it is overfueling massively, it'll not be doing the bores and engine in general very much good.

Simon
Old 07-01-2009, 09:59 AM
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had problems with my old S2, the cheapest, easiest way around it is to find an MOT tester who is willing to bypass that area of the test.

Originally Posted by madmack99
agreed unless there is something you can do and be bothered to do


so you both would be quite happy to be driving a car that's NOT running correctly and more than likely causing damage to your engine(due to bore washing) than pay to get it sorted properly

m8 go and get it looked at b4 it's too late would be my ONLY advise!
Old 07-01-2009, 10:05 AM
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running 11% is engine damaging stuff
inlet manifold gaskets are prone for leaking
causing high idle co
start there
Old 07-01-2009, 10:21 AM
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phil_rs
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Originally Posted by SortedCossie
Hi Phil,

has the car been re-mapped yet as it was running well rich when i saw you last in it? Could be the lambda, but could be the chip too or a temp sensor/temp sensor wiring problem. Saw one once where the ecu thought the engine was constantly "cold" so was constantly chucking loads of fuel in.

I'm no expert at all, but i'd get that looked at as if it is overfueling massively, it'll not be doing the bores and engine in general very much good.

Simon
Hello mate, how's things?
I haven't touched it Si because there just isn't anybody local I would trust tbh and haven't got the time to drive 100's of miles for someone to do a crap job like they did with the S2 lol. I don't think it's overfuelling massively but definately needs sorting. A friend of mine did a fault code test where the light flashes so many times and that was pointing to an ecu fault. I have tried a chip from Tony as you know and that made no noticable difference. I just don't want to be throwing loads of money at it for it to be no better than it is, like I seem to do with the S2 Anyway thanks for your advice mate and I'll see you soon no doubt
Old 07-01-2009, 10:21 AM
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Originally Posted by Coldo
I had problems with my old S2, the cheapest, easiest way around it is to find an MOT tester who is willing to bypass that area of the test.
How does that fix the actual problem though?
Old 07-01-2009, 10:24 AM
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Originally Posted by Tony S Mannock
running 11% is engine damaging stuff
inlet manifold gaskets are prone for leaking
causing high idle co
start there
Thanks Tony but according to the service history the head was reconditioned not to long ago and it looks like they used the green genuine ford gaskets which look in good shape.
Old 07-01-2009, 10:27 AM
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spray some wd40 around the inlet mating face when the engine is idling, you can normally hear the revs cahnge if there is a leak
Old 07-01-2009, 10:29 AM
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try an ecu rest
I assume you are still on the p8
Old 07-01-2009, 10:31 AM
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Originally Posted by Chip
How does that fix the actual problem though?

Chip, it doesnt fix the problem...

Maybe 11% is too high just to ignore it? I dont really know how the figures relate to the severity of the problem but mine was fine.

Also, the government say 3.5% is legal. We can't assume that anything higher than that is suddenly a "problem" with the car, can we?
Old 07-01-2009, 10:31 AM
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Originally Posted by Tony S Mannock
try an ecu rest
I assume you are still on the p8
yes mate, how do i go about this?
Old 07-01-2009, 10:34 AM
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Originally Posted by Coldo
Chip, it doesnt fix the problem...

Maybe 11% is too high just to ignore it? I dont really know how the figures relate to the severity of the problem but mine was fine.

Also, the government say 3.5% is legal. We can't assume that anything higher than that is suddenly a "problem" with the car, can we?
Yes we can, when its as high as 3 times what it should be, there is clearly a problem there!

Not cause the government say so, but simply cause its about 22 times what it would be if correctly tuned and functioning properly!

Last edited by Chip; 07-01-2009 at 11:42 AM. Reason: edit, amended maths to suit stu's target .5% co, lol
Old 07-01-2009, 10:51 AM
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I'd be tempted to get it set up!! at MSD/NMS with one of their own chips
Old 07-01-2009, 10:59 AM
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Phil, I cant believe you have waited for the MOT to get this sorted!

Its been overfueling like a bitch since you had it, aint it?

Pay the money, spend a day in blackpool and get Stu to sort it out before it fcuks up bigtime!
Old 07-01-2009, 11:15 AM
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Originally Posted by Matt Evans
Phil, I cant believe you have waited for the MOT to get this sorted!

Its been overfueling like a bitch since you had it, aint it?

Pay the money, spend a day in blackpool and get Stu to sort it out before it fcuks up bigtime!
You know me mate I'm skint!
Old 07-01-2009, 11:21 AM
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Originally Posted by phil69a
You know me mate I'm skint!
but not so skint you cant afford to through away loads of petrol, and wreck an engine that costs a load to fix?

TBH, if you are skint you definately cant afford to drive it around without fixing it!
Old 07-01-2009, 11:29 AM
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Originally Posted by Matt Evans
Phil, I cant believe you have waited for the MOT to get this sorted!

Its been overfueling like a bitch since you had it, aint it?

Pay the money, spend a day in blackpool and get Stu to sort it out before it fcuks up bigtime!
bcrsoc day trip to blackpool???
Old 07-01-2009, 11:35 AM
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TBH Chip I'm just being a cunt cause I'm sick of spending money on cars but I guess we are all guilty of that!

Does anybody know prices from MSD/NMS for a chip and setup or just even a setup for my car?
Old 07-01-2009, 11:40 AM
  #22  
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Originally Posted by Coldo
Chip, it doesnt fix the problem...

Maybe 11% is too high just to ignore it? I dont really know how the figures relate to the severity of the problem but mine was fine.

Also, the government say 3.5% is legal. We can't assume that anything higher than that is suddenly a "problem" with the car, can we?
Yes we can as 11% is 22x what it should be mate as my chips would run her at 0.5%. The Escorts are closed loop as standard.
Old 07-01-2009, 11:42 AM
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Originally Posted by phil69a
Does anybody know prices from MSD/NMS for a chip and setup or just even a setup for my car?
Setup £141.
Closed loop 803s chip to run 28/22 boost = £150.

Be aware though that neither of the above are particularly relevant if there is a fault needs fixing which it sounds like there is.
Old 07-01-2009, 12:24 PM
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if you don't want to travel to blackpool to get it sorted there are loads of specialists near you that can fix the problem.

nms, coventry
pj motorsport, wolverhampton
reyland, brum somewhere
turbosystems newcastle under lyme

any of them will get your car running properly..
they are specialist for a reason, they work on these cars every day and have probably seen every issue you can possibly think of and found the solutions

of them stu at msd and tony at turbosystems are ones I can personally recommend after using both in the past..

steve
Old 07-01-2009, 12:57 PM
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your car has a fault, probably quite a number of faults
replacing the chip is unlikely to cure it
Old 07-01-2009, 01:01 PM
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Thats high whats the tickover like?

Tony,why would a leaky inlet gasket make it run rich?if you have more air then it would run lean??it would give a high idle speed

And how do you reset the ecu by unplugging it?

Imo i'd be tempted changing the cts first or borrow a know working one to try

Paul
Old 07-01-2009, 01:03 PM
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Originally Posted by phil69a
You know me mate I'm skint!
Er, yeah whatever! ha ha

Have a weekend in, off the pop and you'll have enough money to get the old crank rattler sorted!

Sell me some of your mums pants again, that'll raise a few quid?
Old 07-01-2009, 01:08 PM
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Originally Posted by costina
Thats high whats the tickover like?

Tony,why would a leaky inlet gasket make it run rich?if you have more air then it would run lean??it would give a high idle speed

And how do you reset the ecu by unplugging it?

Imo i'd be tempted changing the cts first or borrow a know working one to try

Paul
it is a manifold absolute pressure sensor system not an afm system
the p8 BT escort cosworth is mapped speed pressure throttle angle
the ecu has a reset feature with ignition on and bridging three wires in a given time period to reset the adaptive memory
with the p8'scomplex limp home and error mask facility it is clever enough
to substitute most values for the likes of ect
technically it can run with out a ect
Old 07-01-2009, 01:39 PM
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Originally Posted by Tony S Mannock
it is a manifold absolute pressure sensor system not an afm system
the p8 BT escort cosworth is mapped speed pressure throttle angle
the ecu has a reset feature with ignition on and bridging three wires in a given time period to reset the adaptive memory
with the p8'scomplex limp home and error mask facility it is clever enough
to substitute most values for the likes of ect
technically it can run with out a ect
Ah i see what u mean now buy saying it could be many faults

As for the running rich with a leaky inlet gasket would that be the same for any cossie L6/L8 or just the P8 due to the complexity?

Reason i ask is a mates car is running a bit rich on tickover

Paul
Old 07-01-2009, 01:55 PM
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What tony is saying potentially applies to any map sensor based setup.
Old 07-01-2009, 01:57 PM
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Originally Posted by Chip
What tony is saying potentially applies to any map sensor based setup.
Thanks chip

could be a possibilty then something to check

Paul
Old 07-01-2009, 01:59 PM
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I was as confused as you initially mate, as I thought P8 was what was on the small turbo cars with the AFM, the only reason I now know that to be wrong, is Tony told me
Old 07-01-2009, 02:08 PM
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Mine was well over 7% at idle

Been to MSD and had closed loop fitted and the co is now 0.67%.

This is on my cossie4i with a L8 ECU.

Steve
Old 07-01-2009, 06:57 PM
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Originally Posted by costina
Thats high whats the tickover like?

Tony,why would a leaky inlet gasket make it run rich?if you have more air then it would run lean??it would give a high idle speed

And how do you reset the ecu by unplugging it?

Imo i'd be tempted changing the cts first or borrow a know working one to try

Paul
That's the thing, it runs/drives/starts absolutely spot on!

Enough fannying about it's going to get booked in somewhere asap! Thanks for everyone's input
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