I know I'm going to need a new exhaust next year...

[CrippsCorner]

Only bought my car in August, where it passed the MOT thanks to the garage... but I reckon they did me over, because a month later I put it through an MOT test at work and it failed on emissions (badly!)

Is there a common part that goes to make the idle test fail? Was about 3-4 times over the limit iirc, I'm just wondering what part I'll have to replace. I'm hoping someone will say backbox so it's an excuse to get a new system

 

[bmh.01]

First guess would be the cat.

 

[SandroWTBR]

id say cat too, or the sensor at the back of the cat?

 

[Mark One]

it has to be the lambda sensor. why would it be the cat? really unlikely to go wrong unless the car has been overfuelling for ages and ages.

 

[Russ.]

it has to be the lambda sensor. why would it be the cat? really unlikely to go wrong unless the car has been overfuelling for ages and ages.

I agree, id say its the lambda sensor.

 

[riz]

prob lambda (£90 from Renault iirc) but check if there are any leaks on the zorst aswell.

 

[Mark One]

don't pay renault £90 for one. I bought a bosch one for about 50 or 60

http://www.cliosport.net/forum/showthread.php?t=314560

 

[CrippsCorner]

Cheers for the heads up guys doesn't sound like it'll be too expensive then!

 

[dunlop]

when my lambda had gone it was 7-8% co. the cat when it had failed on anothere vehicle was 0.9%co