Need to meet up with an early VVC owner.

[pscan.eu]

I have a customer with a 1996 VVC and we are having some issues with the diagnostic protocol.
It appears that the protocol is reliable on the later ones which have MKC104001 on them, whilst it is not on the early ones that have MKC104000 on them.
I am guessing there will be a timing difference with the data packets or something like that.
One aspect of this unreliability is that it is worse with the engine running, and so I need access to a whole complete running car rather than just the ECU.
Does anyone live reasonably near me?
I live in Ruislip and work in Hatfield, and I can travel a bit to visit someone.
Please let me know if you can meet up.

thanks, Philip

[radiomarty]

Northants any use to you ?

[Phil Jay]

You really need to speak to Nick at Austin Garages. They're in Burton on Trent, which is a trek for you, but they're really, really good. Nick has a 1995 VVC and knows so much about the early cars specification.

[pscan.eu]

I have been to visit Marty a couple of times, and he has been very helpful but I still haven't gotten to the bottom of the problems with the MEMS2J on VVC MGFs.

Is there anyone closer to North or West London, Bucks or Herts on here?

[talkingcars]

It appears that the protocol is reliable on the later ones which have MKC104001 on them, whilst it is not on the early ones that have MKC104000 on them.

Hi Philip

Do you know what the crossover point is?
I have a mk1 VVC but it is a '99 model.

James

[Mykel]

Far too young, James. From what I’ve found, the very, very early ones (up to AD010517) had an MCK103720, and then from AD010518 to AD018668 the said MCK104000 was used. As this was changed quite quickly -- 8,350 VINs reflect about two thirds of the annual production in 1996 -- the reliability issue may have appeared very early and addressed by the updated ECU.

Same thing happened much later (in 2004) with the dreaded Pektron body control unit on the later TFs. The original YWC001540 was quickly swapped for the next revision, YWC001541

By the way, Philip, any plans on addressing that unit as well in pscan, as to enable boot lid opener or coolant level alarm on the TF?

[pscan.eu]

I have a mk1 VVC but it is a '99 model.

James

James don't you already have one of my pscan.eu interfaces? Have you tried live data with the engine running on your cars?

By the way, Philip, any plans on addressing that unit as well in pscan, as to enable boot lid opener or coolant level alarm on the TF?

I would love to do the pektron units.
My current priority list goes something like this at the moment, but it can change:-
Fix MEMS2J reliability.
MEMS1.6 as it is already working in the lab.
5AS is it is partially working and everyone seems to want it.
MGF power steering because it looks easy.
MGTF instrument panel so that people can reset their service lights.
After that it gets a bit vague.
Somewhere in the mix I have Pektron, various Rover 75 ECUs, Freelander ABS and airbags.

We are getting low on stock of the first production run and we need work on the second production run as well.

[talkingcars]

James don't you already have one of my pscan.eu interfaces? Have you tried live data with the engine running on your cars?

I do, I've only tried it breifly once on my F and was getting some live info.

[pscan.eu]

I need to find cars on which the unit doesn't work well (i.e. live data unreliable when the engine is running). From what you are saying your car isn't one of them.

It seems that I will have to keep harassing Marty.

[radiomarty]

Hi Philip - I have the week starting the 6th April off if that's any use to you - Marty