TVRs are exempt from MOT emissions tests

[XTR2Turbo]

Q plate have visual emissions.

I understood that PLG just gives it a different tax status hence why no £400 car tax for even the last TVRs registered.

Interestingly my Tuscan always has identical emissions to a 2005 Toyita Yaris

Edited by XTR2Turbo on Sunday 12th July 10:35

[jagracer]

JonRB said:

jagracer said:

As I said earlier the OP is having a nice fantasy

Well, fantasy or not, the tester was satisfied with the emissions of my Sagaris once we had established it was a PLG despite it having red figures for lambda and CO2. Perhaps the emissions for PLG are less stringent and I misunderstood.

Perhaps you haven't read the posts properly and perhaps the tester shouldn't be testing or wont be testing much longer and perhaps for his sake you would have been better off keeping quiet about it. I own 5 cars, they are all registered as PLG, they all need some form of emission or smoke test, the type of test depends on the year of car.

[Rollcage]

jagracer said:

JonRB said:

jagracer said:

As I said earlier the OP is having a nice fantasy

Well, fantasy or not, the tester was satisfied with the emissions of my Sagaris once we had established it was a PLG despite it having red figures for lambda and CO2. Perhaps the emissions for PLG are less stringent and I misunderstood.

Perhaps you haven't read the posts properly and perhaps the tester shouldn't be testing or wont be testing much longer and perhaps for his sake you would have been better off keeping quiet about it. I own 5 cars, they are all registered as PLG, they all need some form of emission or smoke test, the type of test depends on the year of car.

Jon ,I cant imagine what came over the tester when he was doing your car ,but it should have had an extended emission test sequence and you should also have a print out to prove it has passed .In no way ,shape or form should it have been a visual test .It's as simple as that!

He obviously got a bit carried away doing the test - the fact it is a PLG just doesn't come into it at all!As I said ,PLG covers about 99.9% of the cars on here!

I would have kept quiet about it and stored it for future reference!

[JonRB]

jagracer said:

Perhaps you haven't read the posts properly and perhaps the tester shouldn't be testing or wont be testing much longer and perhaps for his sake you would have been better off keeping quiet about it. I own 5 cars, they are all registered as PLG, they all need some form of emission or smoke test, the type of test depends on the year of car.

I'm no longer saying that PLG are exempt - I've conceded that I misunderstood that. I'm now speculating that the emissions requirements are more lenient for my vehicle.

Also, don't forget that no TVR was ever Whole Vehicle Type Approved - they are all on the road either by Single Vehicle Approval (SVA) or Low Volume Type Approval. None have an official CO2 figure which is why they are classified as PLG.

So I'll repeat what I said - perhaps, for whatever reason, my TVR was subjected to less stringent emissions testing which was why it passed.

Edited by JonRB on Sunday 12th July 10:57

[jagracer]

JonRB said:

jagracer said:

Perhaps you haven't read the posts properly and perhaps the tester shouldn't be testing or wont be testing much longer and perhaps for his sake you would have been better off keeping quiet about it. I own 5 cars, they are all registered as PLG, they all need some form of emission or smoke test, the type of test depends on the year of car.

I'm no longer saying that PLG are exempt - I've conceded that I misunderstood that. I'm now speculating that the emissions requirements are more lenient for my vehicle.

Also, don't forget that no TVR was ever Whole Vehicle Type Approved - they are all on the road either by Single Vehicle Approval (SVA) or Low Volume Type Approval. None have an official CO2 figure which is why they are classified as PLG.

So I'll repeat what I said - perhaps, for whatever reason, my TVR was subjected to less stringent emissions testing which was why it passed.

Edited by JonRB on Sunday 12th July 10:57

Agreed your vehicle may have more lenient standards, once it fails the BET test we can go onto an extended CAT test plus there is a book of standards that each car can be tested to which can be a lot different to the standard test.

[JonRB]

jagracer said:

Agreed your vehicle may have more lenient standards, once it fails the BET test we can go onto an extended CAT test plus there is a book of standards that each car can be tested to which can be a lot different to the standard test.

Well maybe that's what he did then. He did start looking through a book or manual and then declared that the readings were fine. Although I didn't get a printout.

[Basil Brush]

S6 Devil said:

Would be good to know for sure, mine is an S spec engine with decats, a Power de-cat chip and CCC's, I don't know whether it will pass the emissions as is or whether I will need to get some cats for the MOT.

I can´t get mine through with the Power chip so I´m having to buy some new cats for this purpose.

I thought the test software has all the limits stored so it tells the tester what to work to? Is this not the case?

[Scrooloose]

I can't remember the exact figures, but the allowance for the Cerbera is more lenient than it is for a normal car. Possibly 1.2 instead of 1.0 - I went through this at my last MOT, as I took it to a non-tvr garage.

The testing station has a book with the allowable pass rate for each make/model of car. I'm guessing that as TVR is a low production volume brand, then the restrictions are less tight.

You still have to pass the test though!

[S6 Devil]

Basil Brush said:

S6 Devil said:

Would be good to know for sure, mine is an S spec engine with decats, a Power de-cat chip and CCC's, I don't know whether it will pass the emissions as is or whether I will need to get some cats for the MOT.

I can´t get mine through with the Power chip so I´m having to buy some new cats for this purpose.

I thought the test software has all the limits stored so it tells the tester what to work to? Is this not the case?

That's an expensive option just for an MOT, Could you not borrow some for the day?

[jagracer]

Basil Brush said:

S6 Devil said:

Would be good to know for sure, mine is an S spec engine with decats, a Power de-cat chip and CCC's, I don't know whether it will pass the emissions as is or whether I will need to get some cats for the MOT.

I can´t get mine through with the Power chip so I´m having to buy some new cats for this purpose.

I thought the test software has all the limits stored so it tells the tester what to work to? Is this not the case?

Don't think so but I'll check tomorrow.

[Basil Brush]

S6 Devil said:

Basil Brush said:

S6 Devil said:

Would be good to know for sure, mine is an S spec engine with decats, a Power de-cat chip and CCC's, I don't know whether it will pass the emissions as is or whether I will need to get some cats for the MOT.

I can´t get mine through with the Power chip so I´m having to buy some new cats for this purpose.

I thought the test software has all the limits stored so it tells the tester what to work to? Is this not the case?

That's an expensive option just for an MOT, Could you not borrow some for the day?

I´m only paying 135 quid each so not too bad and then I´ve got them for next time.

[S6 Devil]

Basil Brush said:

S6 Devil said:

Basil Brush said:

S6 Devil said:

Would be good to know for sure, mine is an S spec engine with decats, a Power de-cat chip and CCC's, I don't know whether it will pass the emissions as is or whether I will need to get some cats for the MOT.

I can´t get mine through with the Power chip so I´m having to buy some new cats for this purpose.

I thought the test software has all the limits stored so it tells the tester what to work to? Is this not the case?

That's an expensive option just for an MOT, Could you not borrow some for the day?

I´m only paying 135 quid each so not too bad and then I´ve got them for next time.

Have you got a supplier number, at that price I would get some too?

[Tamster.]

JonRB said:

jagracer said:

As I said earlier the OP is having a nice fantasy

Well, fantasy or not, the tester was satisfied with the emissions of my Sagaris once we had established it was a PLG despite it having red figures for lambda and CO2. Perhaps the emissions for PLG are less stringent and I misunderstood.

Had the same experience at Mot time for a Tamora registered as PLG, the tester said whatever comes out the exhaust will be a pass, ie exempt, it's a completely different ball game for Tiv's registered incorrectly in the PC tax bracket, all the emission data is on the log book and the Mot tester's database, plus £400 annual road tax fee.

[hoppo4.2]

not so all cars are required to pass the basic emisions test for the year that they were produced.
some cars however can not to this.

in this case there is a book with all the spec's for each model and what it should be able to achieve on the tester.

if the car is not listed in the book then it only have to pass the old non cat test.

however all modern tvrs from the grif onwards are in the book

sorry.

[TVRfix]

As a MOT testing garage and tester I have read the rule book and all TVR's are required to pass an emmision test relating to the age of the vehicle. The rules are; any vehicle first registered on or before 1/8/75 requires a visual test only. From 1/8/75 till 1986; CO% of no more than 4.5% and HC of no more than 1200ppm. From 1/08/1986 to 31/07/1992; CO% less than 3.5% HC less than 1200ppm and basically after 1/08/1992 onwards a CAT test is required with limits of 0.2 CO%, HC less than 200ppm and Lambda between 0.97 and 1.03 at 2500 to 3000 rpm for minimum of 30 secounds then idle C0 less than 0.5%.

However, the TVR range with cats get less stringent requirements; late 'S' models, Chims and Griffs; less than 0.3 CO% less 200 HC and 0.9 to 1.1 lambda reading. Speed 6 and AJP engined cars less than 0.3 CO%, less than 200 HC and 0.9 to 1.2 lambda all at 2500 - 3000rpm for min 30secs and 0.5 CO at idle.

We have found the lambda reading is always the struggle with the standard limits but all will pass with the specific TVR limits as long as CATS are fitted and the cars running ok. There are some exceptions to these rules but generally appling to kit cars and one offs.

Hope this clarifies things.

[JonRB]

TVRfix said:

Speed 6 and AJP engined cars less than 0.3 CO%, less than 200 HC and 0.9 to 1.2 lambda all at 2500 - 3000rpm for min 30secs and 0.5 CO at idle.

Thanks for the clarification. My car was comfortably inside this. Lambda was 1.074, which explains why it would have failed the general test 0f 1.03 but happily passed after the book was consulted.

Edited by JonRB on Monday 13th July 19:56

[Pushrod-Power]

jagracer said:

JonRB said:

Just thought I would give TVR owners a heads-up on emissions at MOT time.

My Sagaris would have failed its MOT test on emissions today, until the tester and I both realised almost at the same time that as a "Passenger / Light Goods" vehicle it was exempt.

Yes, that's right. Not only do we benefit from £190 VED but we don't have to pass emissions either.

I just thought someone might benefit from this knowledge.

It's bullst I'm afraid but a nice wish anyway.
For his sake I hope VOSA don't check the paperwork at his test station or he'll be minus a licence.

MOT tester

Edited by jagracer on Saturday 11th July 20:08

I work next door to a testing station and it is bks indeed,they need to pass a cat test no exceptions.

Edited by Pushrod-Power on Monday 13th July 20:30

[JonRB]

Pushrod-Power said:

I work next door to a testing station and it is bks indeed,they need to pass a cat test no exceptions.

We've already established that. And the fact that TVRs are actually subject to more lenient limits.

But thanks for the contribution.

[Tamster.]

JonRB said:

Pushrod-Power said:

I work next door to a testing station and it is bks indeed,they need to pass a cat test no exceptions.

We've already established that. And the fact that TVRs are actually subject to more lenient limits.

But thanks for the contribution.

Have put several Speed 6's through the Mot test, going back 6 years or more, they generally sail through the Mot test if registered as PLG with or without Cat's, noise level's are at the tester's discretion, check out your tax disc, it will either say PLG or PC, pc is a long story!

[Pushrod-Power]

JonRB said:

Pushrod-Power said:

I work next door to a testing station and it is bks indeed,they need to pass a cat test no exceptions.

We've already established that. And the fact that TVRs are actually subject to more lenient limits.

But thanks for the contribution.

Dont mention it stick to your puttas

Edited by Pushrod-Power on Tuesday 14th July 14:26