MOT Emissions help

[GolfGL]

Hi, So today my mk3 Golf GTI 2.0 ADY failed its MOT on emissions - if only i had booked it at the start of the month rather than a day or due before its run out.

My mechanic said give it a good service, only problem is its just had oil and filter, leads, cap and rotor arm so then said try not new catalytic converter and lambda probe. Before spending £100 on parts from ECP followed by a morning on my back trying to fit the damn thing anything worth testing/trying?

I've seen the ECT sensor test so will give that a try.

Also worth noting shes always seemed quite thirsty but put that down to short journeys, runs a little lumpy on tickover but goes pretty nicely for its mere 115 ponies, never had any starting issues.

Thanks
Adam

[tweed]

Could be a lambda

[GolfGL]

So if the ECT sensor aint the issue just bite the bullet and go for cat/lambda.

[tweed]

I dont want to advise that. Check wires etc first.

[itavaltalainen]

any fault codes??

in any case lambda before replacing cat... but get something decent, not the cheap as chips ones off ebay

[GolfGL]

I have a handheld scanner but it doesnt seem to read anything from my mk3, reads the TT, my old leon cupra r and families cars fine though.

Been looking at replacements and everythings fairly similarly priced other than VW's own £415 cat, was most likely going to get a React cat and Bosch sensor from ECP.

By the time its up on ramps and with the probe probably welded in place its probably a safer bet to do all in one job but fingers crossed its the cheaper ECT sensor option.

[boneybradley]

I do an NGK lambda for £60 or bosch for £65 (both direct fit so no chopping wires like some!)

and my cats are £58 by BM Catalysts or a similar respected brand (not like the non type approved one's sold by euro)

[thai-wronghorse]

Ive got a decent cat and lambda sensor from a 16v you can have for a tenner a piece if they're compatible mate?

[GOLF-MK3-GTI]

Give it a good long run and then take it for emissions or get them to pass emissions test using another car. 

[boneybradley]

16v parts are not compatable, oh and GOLF-MK3-GTI do you use the same mot place i do?