My vRS has failed the MOT on 8 items in total, Grrrrrrrr, garage sorting most, but 1 that has popped up again is the emissions.

 

It failed last year for emissions, problematic part was the CTS, Replaced and it went through.

 

I have logged block 002 with VCDS and CTS temp and dash temp matches this time round so I don't think its that ??, but the o2 Sensor is static at 0 (tolerance are -10% - +10%).

 

Should the o2 sensor reading fluctuate ?

 

Also any other things to check out with VCDS ?

 

Cheers, matt

Edited 29 June, 201511 yr by mluton

I would imagine the o2 should change during running... id get it replaced and then see what happens.

What actual emissions has it failed on - co, lambda, hc ?, how hot was the car when tested, was the cat warm enough?.

Forgot to bring home emissions test sheet from garage.

Going to change both pre and post lambda sensors and see how she fairs on Thursday.

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If the car gets to the extended test then it's going to be as hot as it'll ever get.  Lambda sensor voltage readings should constantly switching.

If the car gets to the extended test then it's going to be as hot as it'll ever get.  Lambda sensor voltage readings should constantly switching.

Cheers mate, as above static figure of 0, no fluctuation, not sure if its pre or post reading, but 140K I'll get both done. 

Got the call @ 5pm today saying my car has passed it's MOT, emissions was due to lambda, all other work complete to. They struggled to get the front brakes lines that had corroded, it has been in since Thursday.

 

Didn't dare asked for the bill amount over the phone, said I'd collect in the morning.

At least its back on the road and legal

£510 :( New Lambda, New front brake lines, New lower arms and other little bits.................. back in my possession now.

Edited 7 July, 201510 yr by mluton

My old girl's just swallowed 500 too but I wouldn't changer her for the world