MOT Fail on emissions

[Tornado8]

Hi
My stage 2 Revo has failed on emissions I am at a loss to know why, as it has passed the last 3 times.
I think it measured 0.9 Co. Is that anywhere near the pass, or way over? Will I have to go back to REVO to
have it adjusted. Thanks in advance

[rjwojcik]

Have you been using your car much in lock down?  Maybe give it an Italian tune before you go in and make sure the cats have warmed up nicely?

[Tornado8]

I will give it a italian tune before I take it in. I have also put in some wynns emission additive which I hope will work.

[Paul70]

Hi
My stage 2 Revo has failed on emissions I am at a loss to know why, as it has passed the last 3 times.
I think it measured 0.9 Co. Is that anywhere near the pass, or way over? Will I have to go back to REVO to
have it adjusted. Thanks in advance

Hi Tornado8
Max is 0.3. Which downpipe are you running? Perhaps the CAT efficiency has deteriorated - what were the previous 3 MOT CO results and had the results got worse over the 3 years?

[Tornado8]

Hi
The downpipe is a 100 Cel from BCS. I've had it for about 4 years

[Paul70]

Have you spoken with Nigel at BCS Tornado8? I think 4 usage from a 100 cell race cat is good going but there are many factors involved. What was the CO result last year?

[Tornado8]

The Co was 0.3 last year. Do your idle revs stay even? as mine seem to hunt . I'm going to give her  a
proper run before I take it in and, hopefully she will pass. By the way the mileage is 83000.

[Paul70]

The Co was 0.3 last year. Do your idle revs stay even? as mine seem to hunt . I'm going to give her  a
proper run before I take it in and, hopefully she will pass. By the way the mileage is 83000.

Good luck Tornado8

[Tornado8]

Thanks Paul70. I'll let you know the result (in on Tuesday)

[rwleigh]

Thanks Paul70. I'll let you know the result (in on Tuesday)

Any update on this?