Need advice exhaust problems- don't cut out the silencers!!!

[Rob_McLav]

Car failed mot on emissions (I had the 2 silencers cut out) turns out 1 was a cat?? Now car emissions are 0.32 instead of 0.20!! Does the car need 2 cats as I've never heard of this before and national tyres say laws changed last year saying if car came with 2 cats it has to have them for mot or it fails instantly!!!!

Also I'm in East Kilbride and need a exhaust system ASAP, any one know a garage in glasgow or surrounding areas that do stainless exhausts and mots?

 

[user 980]

One cat and that's in the manifold

 

[poweller23]

Make sure the at is really warm before they do the test

 

[sam666]

Car failed mot on emissions (I had the 2 silencers cut out) turns out 1 was a cat?? Now car emissions are 0.32 instead of 0.20!! Does the car need 2 cats as I've never heard of this before and national tyres say laws changed last year saying if car came with 2 cats it has to have them for mot or it fails instantly!!!!

Also I'm in East Kilbride and need a exhaust system ASAP, any one know a garage in glasgow or surrounding areas that do stainless exhausts and mots?

on a 133 there are 2 silencers and only one cat on the mani so i highly doubt u got it chopped off i have no silencer's on my gt and still have a cat and my emissions were over 6 times what there meant to be. the tester said it was down to mapping and no silencer's

 

[user 980]

I struggled to get mine through on emissions, I think a few have on here. They really do need a good thrashing before the not I think

 

[Jjay]

Mapped GT with no silencers and with cat, passed first pop but took it for good blast first

 

[user 980]

National tyres for an mot? Only thing worse than that is me having to take it to Arnold Clark haha

 

[singlespeed]

Unless you butchered the manifold, you didnt remove the cat.

Manifold with cat - front absorbtion silensor in front pipe - resonator silensor in middle section - absorbtion silensor in backbox

 

[Chicken]

Mines got no back box and passed mot fine

 

[waitey]

You took advice from national tyres who know nothing of a 133 :lol: fail.

Only one cat in the manifold and emissions were taken with a cold car, and good non money grabbing tester will allow it to warm up

 

[Rob_McLav]

Ffs lol I told them I'm sure it only has a cat in the manifold and they contacted renualt (so they say) and confirmed it had 2 cats so just booked it into simons custom exhausts for a manifold back ss exhaust with an additional sports cat as I thought that's what it needed.

It currently has manifold with cat and back box 2 silencers removed running super unleaded. I recon they tested from cold as car sat a while as I waited ages for a phone call. I hate garages!!!

 

[maggi200]

On the basis they advised you they contacted Renault, it would be worth making a note of the facts and contacting VOSA.

 

[weebob]

On the basis they advised you they contacted Renault, it would be worth making a note of the facts and contacting VOSA.

+1

 

[user 980]

I'm having that photo, will come in handy on a daily basis

 

[waitey]

I'm having that photo, will come in handy on a daily basis

I also saved it for use on cliosport

 

[Rob_McLav]

So basically with manifold with built in cat and back box should be enough? I've googled exhaust and the rs only has 1 cat like everyone says. The 1.2 has a down pipe cat so they could of got mixed up? Is 0.32 a massive difference from 0.20?

 

[Daveyb133]

Wack a load of injector cleaner in, give it a good thrash then take it mate, probably be all good then

 

[singlespeed]

A good warm up before hand (not just 10 minutes idling) - warm up then a little thrash using most of the revs.

If that doesn't get it past and its not been serviced for a while, replace the air filter or clean and re-oil it if you have a cleanable sports filter. oil/filter change and new plugs which will also let you check the coils for any rusty marks showing water has been dripping down

 

[Matt]

0.20% limit hehe... MX struggled to get through with a 3.5% limit!

No need to repeat what's been said about the cat but definitely have words with them regarding the so called contact of Renault. No Twingo has two cats.

 

[133_Ads]

No Twingo has two cats.

This picture says different...