emissions

evening all i have recently bought a Disco v8 on a 1996 plate and am currently getting it ready for the dreaded M.O.T the guy i bought it off has removed the cat and put a de cat pipe on will this fail the M.O.T on emissions does anyone know? :doh:

schoey said:

evening all i have recently bought a Disco v8 on a 1996 plate and am currently getting it ready for the dreaded M.O.T the guy i bought it off has removed the cat and put a de cat pipe on will this fail the M.O.T on emissions does anyone know? :doh:

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No............. decat or deEGR is without any effect on MOT emmision controll........at least in eastern europe

it will fail UK mot test as it needs cat to pass emisions

It may fail, any '93 on petrol car has to meet low emissions, i would either ask your mot man's advice before booking in or just take it & keep your fingers crossed.

bmp42 said:

it will fail UK mot test as it needs cat to pass emisions

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why.....coz they measure the NO3 concentration dont they

Cats are NOT required for the MOT they are not a testable item, all thats needed is for the engine to past the emissions test, doubtful I think without a cats fitted. Unless your engine has worked on to produce a lean-burn engine.

sierrafery said:

why.....coz they measure the NO3 concentration dont they

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You prob thinking diesel cars not petrol?

D1SCO said:

You prob thinking diesel cars not petrol?

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of course mate........ sorry for being so unmindfull to not observe that it's about a v8:crazy::frusty::frusty:

Stick a fuel cleaner additive through it a few days before and rag it through the whole tank (shouldn't take long with a V8). It worked for me on an old 2 litre Rover 200 I had years ago. Had removed the cat on that.

I presume it hasn't got an LPG conversion since you don't mention it.

However if it has you tell the tester you want it tested on LPG and Bingo! no emissions (nearly).

dont need to tell the tester to run it on lpg, just make sure its switched to run on it.

if you are on lpg then you should have no problems passing emissiond but if not you are more than likely going to have problems.

If you only bought it recently why didnt you get the seller to put 12 months test on it?

Find a fella with the same model. Switch pipes. Do the test. Switch back.. Simples ! Used to work for us when it was MOT time and the tyres were iffy and we was skint.

If the vehicle was originally fitted with a cat and it's been removed it is an mot failure, doesn't matter what the emissions test results are.

I wouldn't make a statement without any documented support.

Look at answer no.6 in this link. Quiz Answers