Emissions

[Gerry M]

found this on vosa website whilst checking up on emissions.

"For emissions purposes only, kit cars and amateur built
vehicles first used before 1 August 1998 and Wankel
rotary-engined vehicles first used before 1 August 1987
are to be considered first used before 1 August 1975
Kit cars and amateur built vehicles first used on or after
1 August 1998 ("S" reg) are required to obtain Single
Vehicle Approval and should be tested to the limits
stated on the registration document."

should be in section 7.3 of mot manual

[MikeLMR]

and if you check what the pre 75 limits are it somthing along the lines of ...

not produce excessive amounts of smoke as to obscure the view of other road users.

ACE

[Gerry M]

Yup I know that from owning a 1965 Singer chamois, its visual smoke only, half the time the testers up here just pass it without checking, only ever used to get pulled about the noise due to the  exhaust system only being 18" as it was just a backbox & straight thru.

[FDRZRich]

Has anyone contacted Mazda about getting something to prove that import (ie FD3S VIN) RX\'s are the same as UK cars?

Everytime I have my MOT, the guy points out that technically he\'s having to lie to get it through, as the test asks \'Is the VIN xxxxxx (can\'t remember how the UK number starts!)?\' and obviously imports aren\'t!

With the introduction of the testing stations being linked directly into the DVLA soon, he said that without some official letter or such like, then he\'s not sure he\'ll be able to put it through next time?:confused:

Anyone? Clive, you seem to have good links with Mazda UK?

[clive]

Originally posted by FDRZRich
Has anyone contacted Mazda about getting something to prove that import (ie FD3S VIN) RX\'s are the same as UK cars?

Everytime I have my MOT, the guy points out that technically he\'s having to lie to get it through, as the test asks \'Is the VIN xxxxxx (can\'t remember how the UK number starts!)?\' and obviously imports aren\'t!

With the introduction of the testing stations being linked directly into the DVLA soon, he said that without some official letter or such like, then he\'s not sure he\'ll be able to put it through next time?:confused:

Anyone? Clive, you seem to have good links with Mazda UK?

Mazda will never go for the UK car thing as they are quite a lot of differences, like the second cat in the downpipe the ECU etc, etc.

If it makes any difference l could supply my chassis number on request as the UK cars have a totaly different number order, they start with JMZ  and not FD3S like all the imports.

[Brett]

Hate to do this, section 7.3 was removed from the MOT hand book a few years ago.  As far as the ministry is concerned, your car passed the UK emissions requirements when new and should do so now.

 I spent a long time on the phone to the ministry quoting chapter and verse....

...however if your MOT station will go along with it then good on you! :cool


...or if you are running a gen 1 you have a free liscence too....:rollin

[FDRZRich]

Originally posted by clive
Mazda will never go for the UK car thing as they are quite a lot of differences, like the second cat in the downpipe the ECU etc, etc.

If it makes any difference l could supply my chassis number on request as the UK cars have a totaly different number order, they start with JMZ  and not FD3S like all the imports.

Thanks for that Clive, it seems very frustrating...

The car easily passes the test for the UK equivalent, its not that that the tester is querying. He\'s trying to help me out by saying that basically next year they will probably have to put the reg number into the system, which will show the FD3S VIN. They will then have to test against a standard car set of values, as it does not match the system, and there is no way any RX-7 will pass that test!

Surely there are a lot of people that are going to be in the same situation as me when they introduce this, or am I missing something, you all have some trick to get it to pass a standard emmisions test?

[Brett]

You need to install an air bypass valve from the air box into the inlet manifold.  This will bypass the AFM/MAP and make the car run lean at idle speeds.  (This is assuming your running a DCAT system, if you still have the airpump and standard exhaust you should be able to pass)

[FDRZRich]

Not Decatted, all standard, thats the thing, it passes the test for a UK RX-7 easily- 0% CO and HC and easily withing the lambda sensor range, but the point is that as far as the dvla/testing stations are concerned, as the VIN is different to a UK car, they won\'t be able to test it against the values for a UK car. When that is the case they have to test it against default values, ie those designed for your average 1.1 Fiesta!! Theres no way you can get the lambda reading low enough to pass that!!

[Gerry M]

Well car passed mot today, with no adjustments to commander running base map. The BET check failed, it then puts you to another check which it also failed. Its a 92 so ended up doing a non cat emmission test with 1300cc for engine size.

Idle CO%  = 0.2 - 3.5      I had 2.15
Idle HC  vol ppm = 0 -1200   I had 336

Also recommeded  putting grease on the last part of the brake pipes where there is no plastic as this is where they\'d be likely to rust thru & i\'ve got a bush on the lower trailing arm which will need replaced in the nxt yr.

[FDRZRich]

What value did you get for the lambda reading tho? Or didn\'t he take one?

[Gerry M]

took that on the first test, theres no fast idle on the non cat test, so i don think they do a lambada but could be wrong

[MikeLMR]

Originally posted by Brett
Hate to do this, section 7.3 was removed from the MOT hand book a few years ago.  As far as the ministry is concerned, your car passed the UK emissions requirements when new and should do so now.

 I spent a long time on the phone to the ministry quoting chapter and verse....

...however if your MOT station will go along with it then good on you! :cool


...or if you are running a gen 1 you have a free liscence too....:rollin

Brett I\'m pretty sure it\'s still in the manual I looked in ... its up to date too as my dad is the local Vosa representative

[Gerry M]

Well the info i got was off VOSA\'s website & i\'d imagine it was up to date

[petemillis]

Rich, don\'t panic. I think your tester is over-reacting! When the system goes computerised, everything that can be done using the system will be. Anything that can\'t be done will be tested as they are at the moment. Bit like Chip and Pin - you\'re still allowed to sign if you don\'t know your PIN, irrespective of what some shops will tell you.