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castrolrob
Trade Member
| Joined: | Sun Sep 10th, 2006 |
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| Posts: | 319 |
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Posted: Fri Jul 11th, 2008 03:31 pm |
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some vws -beetle+golf mainly-have similar problems.cat test speed 4500rpm plus.bypass rpm and test according to those limits.one size doesnt fit all on the bet test much as vosa may wish it did.
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Wesley
Trade Member
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Posted: Thu Jul 10th, 2008 10:24 pm |
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David wrote: Where do we find that info in writing from?
Thanks
David
David, About three postings previous
Keith, Latest Snap On DGA uses Bluetooth and states Headlamps On so alternator can work and allow bluetooth sensor to receive.
Wes.
Last edited on Thu Jul 10th, 2008 10:24 pm by Wesley
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kev1975
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| Joined: | Wed Sep 5th, 2007 |
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Posted: Thu Jul 10th, 2008 08:32 pm |
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I have found another car that doesn't seem to like having its emissions tested , 1.2 3cyl vw polo , they never seem to want to stay in the rev range either .
I always manage in the end , normally after i have called it some choice names 
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keithd
Member
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Posted: Wed Jul 9th, 2008 11:17 pm |
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I have no doubt it will work big..E but think I'll stick to what vosa said because it does say in the manual;
If, during the catalyst emission test, the engine cooling fan cuts in or out, this is not a problem and the test should continue as normal. All other vehicle accessories (eg headlamps, air conditioning, heaters) shall be turned off during the test. 
What do you guys do when you get a base model that doesn't have a rev counter?
Last edited on Wed Jul 9th, 2008 11:19 pm by keithd
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big..E.
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| Joined: | Wed Jan 30th, 2008 |
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| Posts: | 330 |
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Posted: Wed Jul 9th, 2008 10:45 pm |
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David wrote: Where do we find that info in writing from?
Thanks
David
You won't find my info in writing David..My Tip came from "the horses mouth" about five years ago..I have used it ever since and it works every time ..All criteria is correct on the printout,i just put it down to experience...
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David
Banned
| Joined: | Mon May 26th, 2008 |
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Posted: Wed Jul 9th, 2008 06:28 pm |
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Where do we find that info in writing from?
Thanks
David
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Webbo1989
Member
| Joined: | Fri Feb 1st, 2008 |
| Location: | Thirsk |
| Posts: | 59 |
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Posted: Wed Jul 9th, 2008 05:50 pm |
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| It has been agreed with VOSA that euro 2 Fiat Punto's can have the engine speed by-passed and be tested at 3300rpm.
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big..E.
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| Joined: | Wed Jan 30th, 2008 |
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Posted: Wed Jul 9th, 2008 01:27 pm |
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Hey guys,the Fiat Punto problem can be easily remedied,
1.Put the heater fan on full speed.
2.Turn on headlights and main beam.
3.Switch on rear heated screen.
Then test as normal.It has something to do with the alternator pick-up for the rev counter.When under load (electrically)you can hold at any rev's you want..
Tip from a Fiat Tech..
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keithd
Member
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Posted: Wed Jul 9th, 2008 12:38 am |
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big..E. wrote: keithd wrote: our DSM probe is too large for the exhaust  getting beyond a joke.
Keithd,look's like you need a new DSM ..The one we just had has a Diesel probe that has a diammeter of about 30mm.BTW how do you test vehicles that "do not fit"??...Presumably you have to refuse to test....?As you cannot carry out a "full inspection!"...Like the vehicles presented we have to move with the times,which costs money and whilst I agree its "getting beyond a joke".."If you don't invest you can't test"...
It's only about 2 years old, tecalemet TG4000 combined unit. Testing thems no problem using your brain I should have said on a few motors the DSM is too large for the tail pipes. Some vehicles have very small bore and our probe has a fancy fin type bit on the end. I've allways threatened to buff it down but never got round to it. Thankfully it fits most motors. Refuse to test? there's allways a way I don't know of any garage in the area that changes equipment such as this every year to move with the times.
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big..E.
Trade Member
| Joined: | Wed Jan 30th, 2008 |
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Posted: Wed Jul 9th, 2008 12:00 am |
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keithd wrote: our DSM probe is too large for the exhaust getting beyond a joke.
Keithd,look's like you need a new DSM ..The one we just had has a Diesel probe that has a diammeter of about 30mm.BTW how do you test vehicles that "do not fit"??...Presumably you have to refuse to test....?As you cannot carry out a "full inspection!"...Like the vehicles presented we have to move with the times,which costs money and whilst I agree its "getting beyond a joke".."If you don't invest you can't test"...
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keithd
Member
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Posted: Tue Jul 8th, 2008 10:18 pm |
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Hi nicknak,
yeah that sounds about right least untill the warrenty runs out and they could fleece you for the price of an ecu.
The main dealer fitted a new throttle body to our customer or they said they did anyway. It was after she came back for the re-test and it failed again she complained to vosa thinking it was our gas analyser that was wrong. VE phoned fiat tech helpline and they faxed him the letter but unfortunatly he couldnt leave the letter with us because they had to go and investigate the problem and that fiat themselves had said that they only issued the letter to customers who asked for it
David,
I hardly use fly by wire or any other lead these days as most cars thankfuly have a rev counter. Many have no dipstick either and on many our DSM probe is too large for the exhaust getting beyond a joke.
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nicknak
Trade Member
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Posted: Tue Jul 8th, 2008 08:55 pm |
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Fiat had a problem with the ecu being faulty  change it and it was ok, I think that memo from fiat was to get around that problem, far cheaper than changing the ecu.
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David
Banned
| Joined: | Mon May 26th, 2008 |
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Posted: Tue Jul 8th, 2008 06:29 pm |
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Thanks for the advise. It was a fiat punto I experienced the problem on, just has you mentioned, what I did was bypass the fly by wire system. I have noticed this problem in the past on some other makes and models as well, like some BMW's I think.
Looked into the testers manual under regulation (7.3), very useful information, it said if the engine speed drifts out of tolerance, allow it to return and settle, that's it?
Useless sprung to mind
Thanks
David
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keithd
Member
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Posted: Tue Jul 8th, 2008 06:45 am |
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Check the emission book David, not all cars are tested in those rev ranges. Some fiat punto's is one example where they won't hold steady under 3250rpm. I remember having trouble with one years ago, failed it and the owner went to fiat as she still had a bit of warrenty left. Next thing we know vosa was on the phone saying they wanted to come out and do an emission test on the car. VE took a letter from fiat out with him which pointed out that the emissions would have to be tested above 3250rpm. We did the emission test again and sure enough it passed. We did nothing wrong and even vosa at the time didn't know about this problem. There was a special notice issued later on about it.
So if I ever get one like this I double check with the emission booklet.
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Tim
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| Joined: | Sun Jun 15th, 2008 |
| Location: | Southampton |
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Posted: Tue Jul 8th, 2008 06:27 am |
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If the car has its own rev. counter, you should use that instead.
It allways works for me. I find that the "fly by wire rpm adaptors" are sometimes to skitish.
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David
Banned
| Joined: | Mon May 26th, 2008 |
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Posted: Mon Jul 7th, 2008 11:22 pm |
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You are setting up your gas analyser and have calibrated your fly by wire RPM adaptor, you now put your exhaust metering probe into the tail pipe and start to perform the emissions test.
The RPM specification fast idle is between 2500 - 3000 RPM, the engine will not stabilise at this speed so analyser will not start count down.
What do you do?
1/ Bypass the RPM measurement
2/ Refuse to test the emissions
3/ Refuse to test the car
4/ Issue a VT32 advising the emissions could not be tested
5/ Any other reason possible
David
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