UPDATED - Emissions on a post Aug-92 (K-reg) car?

[superchargedpolo]

I removed my cat from a J-reg G40 and it passed it's emissions without a problem.

What about a K-reg car?  My understanding is that the regulations changed on the date of first reg for a K plate car.  Has anyone got one of these to pass it's MOT without a Cat fitted?

In other words, can I fit my PSD manifold and full stainless system and still pass the MOT on a post Aug-92 car.

Cheers
Craig

[jscmk3]

I'd be interested in knowing the MOT rules on this too. Although as far as i'm aware, vehicles registered after August '92 have to physically have a cat fitted, regardless of emmisions.

[samg40]

Well I passed an MOT in March without a cat on a K reg car. I may have just been lucky but they never mentioned it and just put it through as a non cat test.

Apparently the mechanic I used to use said the MOT centre he took it to used to put it through as a non cat test because G40 wasnt on the system so they had to put it through a generic non cat test. Whether one tester would be aware of the rules more than another I have no idea but I've got a ticket for another year so I'm happy!

[scotsjohn]

Same here; no problems. Since almost nobody knows about G's though, you can get a lot of leeway especially as a well maintained G will run very clean.

[DMWG40]

my co was 0.55 % today
my hc was 48ppm

i have a no cat car,

[Alexiskayak_7]

What's the emmisions limits in England?

[djtez]

i know in scotland which im sure must be close to englands mot laws

but its 1.5% maximum co emmisions on a post aug 1992

and 3.0% co emmisions on a pre 92

[Alexiskayak_7]

What about hydrocarbon limits?

[djtez]

i cant guarantee but 250ppm comes to mind ?

maby thats a bit high but thats wat i can remember

i can double check tommorow at work as i work in an mot station

[superchargedpolo]

Interesting stuff.

My J-reg G40, that had the cat removed, had the following emissions in it's last MOT:
0.71% CO
181 ppm HC
It passed without a problem.

I guess my K-reg car will be similar to the above and these will hopefully fall within the post Aug 92 bracket.

Only one way to find out

Craig

[superchargedpolo]

UPDATE.

Not sure if anyone cares but I MOTed the car today and it actually failed on emissions.
So technically speaking a K-reg G40 will need a CAT to pass.  No surprise there I guess.

Anyway. On a more positive note the car was looking mint and after a 5 min chat with the MOT tester the fail turned into a pass.  What a top chap.  It'll be going there next year.

Cheers
Craig

[neil_dubgt]

Cheers for that!

i always wondered when i had my GT (k plate) if it would pass without a Cat, never had it long enough to find out.


Think its always going to be one of those grey area's..You have a MOT with no cat just from a chat with the tester!

Depends on the station i rekon

[G4O LP]

Its not even the station its the tester mine past no cat one year and failed at the same station 1 year later on the emissions because of the de cat

[G40supercharged]

When they introduced the cat emissions on 1st Aug 1992 there were still a lot of unsold pre cat cars around. The rules were relaxed to allow these to be sold; if the car was built more than 6 months prior to 1st Aug 1992 then it is covered by the non cat test. Most 1992 G40s were built early 1991 (my K reg G40 was built a month or two after my H reg G40) so technically they should qualify (even though they had cats and are perfectly capable of passing the cat test). I'm not sure how you go about persuading the MOT guy though, as it all comes up automatically from the VOSA computer now. I think the same thing applies if you build a kit car; emissions goes on original engine date.

[PeteG40]

the grey area is - most non-cats will pass the early cat test.   So as long as it actually passes the emissions test, its down to the tester's discretion to pass if it hasn't got a cat.  As far as I know they should technically fail it as it should have a cat, but many dont as it passes the emissions tests.