mattferret

If i have an import MY94 car, where does it stand with regards to the MOT testing with a de-catted centre section ?

some say its old enough not to have to have a cat test others say ask here

so i am..
for info it has a sports cat in the downpipe also.

rabskyline

needs a cat...but depends on mot tester if he bothers and if it passes emissions...

mattferret

cheers... ive always got the other centre pipe if needed.


So what age of car (import or UK) doesnt require the centre cat ?

stigaz

i think 92 on need a cat, i had a 91vtec crx that i decated it didnt need it for mot

aRSekicker

i just had my m.o.t m8 went thru all these probs
i own a 93 import fully de-catted and chipped
all garages state requires cat test
also it will have the info you need on the bottom of your log book under heading " special requirements "

good luck m8 not many places will pass without all the proper kit on

mattferret

cheers for the reply mate.

mattferret

found this on the web - eventually...

Emissions testing for petrol engines appears complex but once the date of first use and the vehicle type has been established then it's really quite simple.

Passenger cars:

First used before 1/8/1975 - Visual test only. Failure for excess idle speed, dense blue or black smoke for 5 seconds at idle or during acceleration up to 2500rpm or half engine max speed whichever lowest.
First used between 1/8/75 and 31/7/86 - meter test CO <=4.5%, HC<=1200ppm.
First used between 1/8/86 and 31/7/92 - meter test CO<=3.5%, HC<=1200ppm.
First used between 1/8/92 and 31/7/94 - advanced emission test (CAT) if its running on petrol when presented, to the vehicle specific limits usually around CO<=0.3%, HC<=200ppm and Lambda 0.97 - 1.03. Remember from 1st August 2001 a basic emission test will be carried out initially.


the basic emissions states this....

From 1st August 2001 a simplified emissions check was introduced and this will be carried out on vehicles prior to doing a full "CAT" test. If the vehicle meets the requirements during this BETs (basic emission test) then it passes. There will be no need to measure the engine temperature using the analyser probe but the vehicle must be at normal running temperature. However, engine rpm will still be measured. If the vehicle fails the BET then the full "CAT" test is applied.


so some might get by with the one cat if it gets through the basic emissions.

StiX

iTrader: (4)

Ditch your cats:

pre Sep 95 imports can be tested via the non-cat test, as they are not an exact match on the DOT register.

This is not a myth, its the facts - do a search and you will find several posts on this.

Also I have personal experience on this having done the same on my old WRX MY95

So classic WRXs and STis pre Sep 95 need no cats at all.

vindaloo

So long as it's an import from outside of the EU and it's not got a vehicle type approval... Which is a longer version of what you've stated.

To the OP, I'd search around and find proper doc on this. If you then get that printed up and take it to your test centre, you shouldn't have future problems.

J.

myblackwrx

iTrader: (1)

Your car doesn't have a cat in the centre section anyway as far as i know the only cat is in the downpipe.

This may help

mattferret

stiX, Vindaloo and again to the user that sits on my shoulder and babysits me through my impreza education myblackwrx (thanks again mate for replying to one of my posts - you should come this way for a free beer)

thanks guys, this site is defo worth its weight in gold.

myblackwrx

iTrader: (1)

Hmmmm beer

StiX

iTrader: (4)

No worries

A few years ago, I had a decatted MY95 WRX. Swapped the centre cat back on for MOT time - still failed.

Completely lost as to what to do, asked for help on here - bingo! Some helpful chap explained the non-cat test Pre Sep 95 wotsit. Printed it out, took it back to the testing centre and they then tested it with the non-cat test, which it flew through as its so much more lenient

mattferret

well i picked up the centre section and back box today from H&S so just got to fit it now.

20withascooby

if its a pre 95 import it doesnt need a cat mine a 94 wrx import went thru mot with no cats on it all

20withascooby

my black wrx where did u get dat image from

exvaux

iTrader: (1)

mines a 99 typeR with no cats and never had a problem,it only goes through the minimum test for the emmissions and passed last year

myblackwrx

iTrader: (1)

Type RA website i think but you can check here http://www.vosa.gov.uk/vosacorp/repo...01994-2002.pdf

KLR16V

iTrader: (2)

Thought the cat was in the down pipe and the centre section was not a cat just a silencer so does not effect emmisions . My 93 wrx is H&S decat down pipe straight through centre and scorpion back box ,been on the car for 6 years never had a problem with mot

Mark

rossd001

So anything before 95 is ok....

I have a 95 import. Dont know what month!

hux309

Anything before september 10th 1995 i believe.

rossd001

How do you find out, wont your V5 tell you when it was registered in the UK?

hux309

Yeah it does.

Year of first registration and year of reg in the uk.

Haha just realised, the car was registered on my 20th birthday coolio.

For the cat test i believe it's based on year of manufacture not year of registration in the uk.

wrxkarl

does anyone have a cat or know where i could one for my 93 wrx import. Because mine failed on the emissins. cheers

myblackwrx

iTrader: (1)

I have the old cat from my 93wrx you can have but it's a heavy lump.

If you put up the results of your MOT and how they tested it ,as you can see this thread is about the decat/mot question, did the gargae test it with a Basic Emissions Test or did they use another figure.

craig19742000

i have j ust got my car through mot with straight through pipe no cat or decat if it passes emmisions test it passes mot

wrxkarl

It went through the whole thing. Where abouts are you? And how much did you want for it??

The rookie

iTrader: (1)

WRXkarl, if your car is failing the CORRECT test (which for a 93WRX is the non cat test) then fitting a catalyst won't help as it will be swamped by the high emissions level, I suspect your tester used the cat test (incorrectly) so take it back and tell him its a grey and to check with VOSA if he doesn't accept he used the wrong test.

If it ain't broke, don't fix it!

Simon