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PostPosted: Sat Sep 15, 2018 11:45 am 
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Location: Reading, Saabshire
Car Model: Merc A200d AMG 7sp DCT
Hi all,

Our 92 9000 has just had its MOT. It passed, but the guy said the fast idle CO% was borderline.

Car is a 92 9000 with a B202S, Bosch LH and Saab DI-APC. No CAT.
Its only got 74,000 on the clock and the engine is mint. All recently serviced etc.
Im thinking failing O2 sensor ?.

Its a 3 wire jobbie, and the wire goes all the way up to where the Pollen filter is, to a small plug/connector.
Not sure how easy it is to get these now for the older cars ?. I have emailed Bill to see if he can help.

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PostPosted: Sat Sep 15, 2018 11:47 am 
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Location: not in a SAAB.
Car Model: One of the first RHD 9-5s
Has it been tested to the correct criteria and not one for a later car?

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PostPosted: Sat Sep 15, 2018 12:02 pm 
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Joined: Thu Mar 31, 2011 11:46 am
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Location: suffolk
Car Model: 1993 9000 2.0 cse
this year the guy stuck the reader up the zorst at tickover maybe 20-30 seconds thats all he did
all passed very clean sir he said for its age and not being a t5 one he was impressed
normally they do 2-3 different tests mine struggled a bit with 02 last year
but serviced before mot this year got it nice and clean he was suprised as if he wanted it to fail they sell cats there

looking through me old mots i noticed since its been computerised it was passed as a non cat car one year dunno what happened there didnt notice at the time

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PostPosted: Sun Sep 16, 2018 12:26 pm 
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Location: Devon
Paul, according to the registration number you gave us yesterday, your car was first registered in November '92 and therefore I would say that it should undergo the "cat" test for cars first used on or after 1st August 1992. The fact that your car has a lambda sensor indicates that it originally had a cat (non-cat systems didn't have the lambda sensor, as you can see from the EPC). Therefore it is likely that the reason your car's test results are borderline is simply because the cat has been removed at some point in its life.
However, we can supply the sensor if you need it and I have e-mailed details.

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PostPosted: Sun Sep 16, 2018 12:58 pm 
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Joined: Thu Mar 31, 2011 11:46 am
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Location: suffolk
Car Model: 1993 9000 2.0 cse
mine march 93 so deffo needs a cat boo didnt know that when i got it
paul knows this but the S in the vin means has a cat b202s
mines low mileage and clean and i have spare cats

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PostPosted: Sun Sep 16, 2018 2:21 pm 
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Location: Reading, Saabshire
Car Model: Merc A200d AMG 7sp DCT
Yeh we removed the CAT 2yrs ago when the Abbott downpipe and system went on.
It did just pass though, which for Bosch LH is pretty amazing.

Bill, just waiting for my lad to say yes. Its his money.....

I gave the CAT to TwyRob as well. Wish i kept it now, might need it one day!.

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PostPosted: Sun Sep 16, 2018 8:07 pm 
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Joined: Wed Apr 16, 2014 12:26 pm
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Location: South Oxfordshire
Car Model: 9-3ss Aero 2.0T; OG9-3 vert
Sadly it went with the car!

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PostPosted: Mon Sep 17, 2018 4:02 pm 
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Joined: Tue Mar 25, 2014 5:41 pm
Posts: 1145
Location: Kippen STIRLING
Car Model: 9-5 Aero Sportwagen and more
Guys,

My local MOT tester says to always do an 'Italian tune up' on the way to the test. ie. Drive it like you stole it and get it good and hot. Arrive just at the appointed time and get the test probe inserted as soon as you get there.

Only time I've ever had an emissions fail was when I had an exhaust leak at the flexy pipe. Rather surprisingly this can cause air to be drawn in as the exhaust passes down the pipe ( Bernoulli effect and all that ! )

Paul @ Kippen.


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PostPosted: Mon Sep 17, 2018 6:36 pm 
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Location: Reading, Saabshire
Car Model: Merc A200d AMG 7sp DCT
Paul Anderson Kippen wrote:
Guys,

My local MOT tester says to always do an 'Italian tune up' on the way to the test. ie. Drive it like you stole it and get it good and hot. Arrive just at the appointed time and get the test probe inserted as soon as you get there.

Only time I've ever had an emissions fail was when I had an exhaust leak at the flexy pipe. Rather surprisingly this can cause air to be drawn in as the exhaust passes down the pipe ( Bernoulli effect and all that ! )

Paul @ Kippen.


"Cough".
I may or may not have taken it on a certain local bypass thats 5 miles long.
Flat out in every gear, again , may have....
And we arrived 2mins before time.

Basically he did the CAT test, and it doesnt have a CAT. But it still passed. Only just !.

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PostPosted: Tue Sep 18, 2018 2:01 pm 
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Location: Island of Sodor
Car Model: The Pizza Taxi
I don't think you can do anything other than fitting a CAT?

The B202s seem to have a really long cable to the Lambda plug. A pain in the bottom when dropping the downpipe.

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PostPosted: Tue Sep 18, 2018 5:34 pm 
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Joined: Sun Oct 15, 2006 7:02 pm
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Location: Reading, Saabshire
Car Model: Merc A200d AMG 7sp DCT
niven wrote:
I don't think you can do anything other than fitting a CAT?

The B202s seem to have a really long cable to the Lambda plug. A pain in the bottom when dropping the downpipe.


Yes thats right. It wraps all the way around the side of the engine, and goes up to the firewall chamber next to the interior air filter.
My lad will buy a new one once he gets paid.
I expect we will keep it non CAT as we are pushing for 300bhp, the same as my old Aero.

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PostPosted: Tue Sep 18, 2018 6:42 pm 
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Joined: Mon Apr 02, 2007 11:52 am
Posts: 23244
Location: not in a SAAB.
Car Model: One of the first RHD 9-5s
Isnt there a link pipe behind the DP on that car? Seem to remember there was always a short link and you can buy that new for not much money. Then get a cheap generic CAT spliced into that 'for MOT purposes'.

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PostPosted: Tue Sep 18, 2018 6:58 pm 
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Joined: Sun Oct 15, 2006 7:02 pm
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Location: Reading, Saabshire
Car Model: Merc A200d AMG 7sp DCT
9000Parts wrote:
Isnt there a link pipe behind the DP on that car? Seem to remember there was always a short link and you can buy that new for not much money. Then get a cheap generic CAT spliced into that 'for MOT purposes'.


There might have been on the original exhaust, but this is all Abbott Racing. So a later CS system.
2.5" Downpipe, 9000i non-CAT pipe, then abbott 2.5" system with 4" rear box.

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PostPosted: Wed Sep 19, 2018 2:15 pm 
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Joined: Thu Mar 31, 2011 11:46 am
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Location: suffolk
Car Model: 1993 9000 2.0 cse
whats the deal if the police or vosa etc stop you roadside and you have no cat on your car but it passed the mot like that then
would they emmision test it if it passed would they look for a cat or not id think not

only been roadside tested once in about 97 in a panda
im sure i heard on one of them police progs you get a certain time to rectify the fault

so if thats true why does anyone have a cat on the car if theres no penalty for not having one go get one ok all good off you go

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PostPosted: Wed Sep 19, 2018 3:27 pm 
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Joined: Mon Apr 02, 2007 11:52 am
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Location: not in a SAAB.
Car Model: One of the first RHD 9-5s
scanditurbo wrote:
whats the deal if the police or vosa etc stop you roadside and you have no cat on your car but it passed the mot like that then
would they emmision test it if it passed would they look for a cat or not id think not

only been roadside tested once in about 97 in a panda
im sure i heard on one of them police progs you get a certain time to rectify the fault

so if thats true why does anyone have a cat on the car if theres no penalty for not having one go get one ok all good off you go


Its only cars built after 2001 that must have a CAT fitted as there is no reliable database from before this time to show if a vehicle had a CAT or other emissions control system. Likewise with the emissions test, its only cars that will get a visual inspection for a CAT, pre-2002 it just has to pass the relevant emissions test for that vehicle.

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PostPosted: Wed Sep 19, 2018 3:32 pm 
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Joined: Thu May 11, 2006 4:38 pm
Posts: 171
Location: West London
Car Model: 1993 900 Ruby and Convertible
scanditurbo wrote:
so if thats true why does anyone have a cat on the car if theres no penalty for not having one go get one ok all good off you go

Clean air and legislation dear boy. Ignorance of the law, etc, etc.


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PostPosted: Thu Sep 20, 2018 12:18 pm 
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Joined: Thu Mar 31, 2011 11:46 am
Posts: 4424
Location: suffolk
Car Model: 1993 9000 2.0 cse
tongue in cheeck here
ive always had a cat on my 9000 so dont judge me as part of the problem
im not someone whos had many diesel cars and pretended there good for the world as the government said so :loco: :loco:

clean air my bottom when was the last time we breathed clean air quite a long time ago methinks
id still be riding a pushbike if the nhs was actually doing what they were supposed to do but alas another govenment ballsup there

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