Club 80-90 Forums

Temp and fuel gauge are there (and functioning!), but are not much good as they are hidden behind the Jetta RPM plate

A win is a win though!

Some good news today, I managed to source a Diesel tachometer from a Jetta. Had some time to fiddle and test it with the latest PCB prototype this week and although it's not a perfect fit, it works! I may have a go at swapping over the PCB from the Jetta tachometer into the T3 tachometer I have. If ...

More than likely not compatible with a T3. I don't believe any T3's (definitely not Diesels) came with a factory Oil Pressure sensor, so you would need to buy/fit an after market one and run a wire to the engine bay. Voltage could probably be wired in, but an aftermarket temperature sensor would pro...

Cheers TT. I look forward to seeing your kit. I managed to get the Tachometer installed and tested this weekend. Unfortunately I couldn't get the factory T3 Tach to work, but I did manged to get the aftermarket Tach to work with the new PCB. Hopefully the factory Tachometer I have isn't busted, I've...

Managed to install the new dash and take the van for a quick spin this evening. Some dash LED's are a bit too bright, but everything seems to be working well. It is nice to have a digital clock on the old van now too. Next step will be to install and test the tachometer when I get chance. https://i....

Finally got the latest prototypes and parts delivered today. Just spent the last couple of hours assembling this. It looks a lot cleaner now. I managed to source a dash with a Tachometer and a digital clock too. Looking forward to testing everything very soon, but not likely to be this weekend as we...

Just realised that I haven't posted an update for a while. Latest prototypes were installed a couple of weeks ago. Good news is that (almost) everything is working well. The DOPS system is working spot on now which is great. The new temperature and fuel gauge are working with the updated JST connect...

Good find. Not a bad looking kit. I do like the plastic cover for the PCB itself, I've been thinking of having something 3D printed for mine.

TwinTurbo wrote: ↑09 Jan 2026, 18:20 it not likley to be a stepper motor on the T4 t will be a standard moving coil meter.

Thanks TT, do you know if any moving coil meters would be compatible with a standard T3 Tach PCB?

Anyone know if you can still get hold of the Stepper Motors for a T3 Tachometer? Or a more modern one that functions the same way?

I've seen loads on ebay for T4's and Mk3 Golfs, but they look very different and I imagine they work in a different way.

Cheers.

Cheers TT. Glad you haven't given up either.

Ok, it's been a while so I thought I would post an update. I haven't given up on this project and I have been back and forth with the people who designed my PCB and we've been slowly making improvements. I also got a bit of a refund from JLCPCB as they made a few mistakes too. Good news is that I've...

it could be the DOPS board itself is faulty couldn't it ? That's the bit that does the self test - you haven't incorporated the DOPS board function into your new replacement board have you I have the ribbon PCB installed again at the moment and the self test is working fine, so I think that rules o...

Perfect, cheers Robsey. That matches what I have. It looks like my wiring is good, so it could mean it's something on the board?

I may disconnect one of the pressure switches to see if it sets off the DOPS alarm next?

Stesaw wrote: ↑16 Sep 2025, 15:17 the LED isn't duff is it?

Tested the LED with a multimeter and it is working fine.