NefMoto

Maybe someone know how is it possible to connect digital speed signal to mk2 clusters?
I have to do this, cuz i need a speed signal in the ECU.
Is there any possiblities?
Ori Golf ii cluster has mechanical speed sensor.

You already gave yourself the answer, its mechanical not electronic.

Can you not fit the MK3 cluster?

I think he means how to get speed signal? You can fit speedsensor on backside from MK2 cluster, in past it was used for GALA (geschwindigkeits-abhängige-lautstärken-anpassung = speed dependent volume adaption) function. Or just remove speedo shaft and fit MK3 speedsensor on gearbox and use MK3 cluster...

mfa / cruse control equipped mk2 have a vss output from the cluster

Maybe you could try to use the MK3 speedometer to fit in your MK2 cluster, but I am not quite sure if it will fit in a decent way.
In that case you could use the MK3 signal sensor and have it digital or as adam mentioned using a MK3, which I have seen working by a few people.

As far as I know a tradition speed signal will not work for a 24v ecu as it uses can bus from abs for vehicle speed. There is apparently some asm changes needed to use the speed signal from speed sensor or cluster.

Mk4 24v vr6 100% uses mechanancal speed sensor. You can flip.some bits for speed from can but stock it looks for speed from mechanical sensor in the trans

I know it's there on the trans, and I know it's in the pin out for the ecu but it does not react on the bench or in the car. When I swapped the r32 setup into my 2000 glx mk4 I had no speed signal to ecu untill abs module was plugged in, i did have speed signal to cluster before abs was plugged in. It seems as though its canbus from abs. You can test on the bench by pulsing ground to pin 54 and you will see what I'm saying. Any other ecu that's takes a direct signal will show speed go up in measuring blocks ie 1.8t or 12v vr6. This is only based on my experience with 2.8 24v ecus and r32 software on them.

It's possible to do. I use peed sensor from Opel Kadett from EU market. That Speed sensor have digital output and mechanical to mk2 cluster.

(https://thumbs.img-sprzedajemy.pl/1000x901c/f2/80/8e/impulsator-aa-6-imp-opel-kadett-gsi-16v-c20xe-skrbensko-sprzedam-482238188.jpg)

Do you got that working already?

And could you give the part no?

Greetings,

Dream

maybe a stupid suggestion but you could use an arduino with a CAN shield and GPS receiver and then send vehicle speed over the CAN bus.  It sounds complicated but it's not that bad and the parts are cheap.  Happy to help if you need it

Yes you could do this, if you only need speed info for speedometer. GPS is not even close to being fast enough for control units. Ecu only might, but DSG definitely does not. If you have a retrofitted DSG, DO NOT try this while driving into a tunnel.

I used GPS with my cars speedometer for a while. Also briefly tested sending that speed info to CAN, but DSG throwed in a towel after 15 meters of driving. Result was no drive at all.

Do you know what the ECU is using vehicle speed for?  For DSG, could you not use engine speed * gear ratio calculation and make an approximation with speed gradient during shifts?

All (?) ME7 have digital VSS input on dedicated pin.
Using that VSS input is only a matter of configuration, never seen it any other way yet.
It can take the signal from ABS CAN, from Kombi CAN or from dedicated wire.

I do not mean to scale my singular experience to your generally quantified ME knowledge ;) but I looked into this in detail for ME7.9.10 at some point. All stands as you say, and I found all the configuration bits I needed, the VSS pulse signal interrupt was there in the code, two different ways to get speed from CAN, everything. Only that the VSS signal through the pin did not work, the connection path for the pin on the board was missing the required components. I found it weird and went the CAN path for my purpose. There is always a chance I was looking at wrong paths on the board and I should recheck it perhaps, but now that I have the original problem solved I can't be bothered. Just saying...

Only cruise control comes to mind.
Gear ratio calc is exactly what i did after my GPS-antenna died. I'm only using it for speedo though, not accurate enough yet for other stuff (during gear change it's a bit wonky right now). Also you need to adapt for tyre size, if they differ from original vehicle. Like in my car, true speed is quite different from what DSG expects it to be.

I am talking about VAG ME7 here. Go away with your Italian stuff :p

After few months i already did that.
This is the simplest way.

Thanks for answers and tips. (This one with kadett speed sensor is interesting if u can't get any Clusters with VSS output)