Sinister1983

About 6 months ago i read a thread on here about pre 95 import mot tests and now i cant seem to find it. Basically im trying to figure out if my94 will pass with the decat downpipe still fitted? also does anyone know what the limit is for the exhaust db's are? i have a blitz nur spec cat back.

cheers

myblackwrx

iTrader: (1)

My 93wrx with a decat passed last year (revolution exhaust).

If the tester thinks it's too noisey then they can fail it.
Your best bet is to take it to a local impreza specialist.

Sinister1983

i live in lakheath, ip27 9pn. anyone know where to go in this area?

p12mem

mot tester myself, think you'll find an import should be just a visual check, maybe wrong but will find out for you for a fact if you want?

NUTTYNICK

Would that be visual check for security of attachment and leaks?

I think from reading on here, the loop hole is pre September 1995 cars and emissions. If the exact model cannot be found on the testers emissions machine, then a pre cat test is to be done where the emissions allowed are slightly higher. However, it still needs to pass this catted or Decat.

Post Sept 95 cars, regardless of the fact the exact model may not be on the machine, must pass the tighter emissions test. This usually means that the car will have to have a cat (not always though).

If you are stopped by the police, they may visually check for cats, see there are none and then fine you, assuming it's going to fail emissions. I think this is how some interprate the law.

Obviously all 'internet experience' but have seen a few screen shots of MOT test guide lines with the above data on.

p12mem

a visual check of smoke from the exhaust on imported cars, or 3.5 co on tickover only, i'll find out tomorrow for sure tho

Sinister1983

let us know what you find out. i plan on swapping the blitz back box for an HKS Legamax 3" stainless back box eitherway so hopefully it will go easy on the testers ears, and mine.

p12mem

found out at work today about the facts on cat test's for subaru's
hope this helps

all subaru's including imports between 1st august 1992 and 31st july 1995
are in the vehicle database or in the service emmissions book

so we carry out a cat test using vehicle spec

all subaru impreza's including non turbos, uk and imports are


IDLE SPEED
max co limit(%vol) 0.5

FAST IDLE
max co limit (%vol) 0.3
max hc limit (ppm) 200
min lamda 0.97
max lamda 1.03

as for subaru's between august 1995 and 31st august 2002 the spec is the same

i've gone by the mot book but i'm sure someone will have a different view on this but hope this helps anyway

NUTTYNICK

Can't really argue with an MOT tester, bit like a rugby referee really

It would seem though that the testers guide book is open to a lot of interpretation. In places it can be a bit vague imo.

This recent link is one of many that talks about the legal requirements. There are a couple of flow charts on the net that I think make it a little clearer.

Would be nice to get an up to date 'definitive' answer to this though. Might be worth talking to the MOT tester you have in mind to test your car prior to taking the car. If the answers to your questions are a little vague, then look elsewhere.

Of course, the info from p12mem is probably the up to date info I was after!

p12mem

catch us on a good day when we aint been wound up by our women

NUTTYNICK

So true, my local mot guy said to take the car around on a Saturday morning when they have more time to tinker with the car. No changing exhausts or anything, but just a chance to try a few tricks to get emissions down. I guess one of the main ones is to get the car really hot and then straight on to the emissions tester without waiting for a spare bay etc.

p12mem

we do try get em thru, the cars i dont bother with and look even harder at are the one's with lights and washers not working, even if the washer bottle just needs filling up, if they cant be bothered fixing the simple things the main bits are gonna be pants, take it clean and make sure everything works ok and you should be fine