Help: VR6 Diagnostics Port Wiring

[Tekara 0]

Hi All

 

I’m helping out with the tidying up on a VR6 conversion, one the main issues with it is there isn’t a diagnostics port wired up anywhere we can find. As such I thought it easier to start from scratch and install a new one.

 

Does anyone know the pinouts on an OBD1 AG ECU for the diagnostic port, I believe there are meant to be two for the K and L lines? In addition to those would I also be correct in thinking there is meant to be a 12v and ground feed to the port? If so where is best to get those from?

 

Cheers

[mr.ots 10]

Have you looked under the gear lever sorround?

[Tekara 0]

Yes, looked high and low. Should mention its a Mk2 conversion using Corrado parts, whoever did the wiring clearly wasn’t the best. Seems only the important wires have been plumped in, still a bundle in the scuttle that go nowhere - guessing the diagnostic lines are amongst that hence why I’m now want it trace back from the ECU.

[Kevin Bacon 5]

This wouldn't be Nick's MK2 VR6 by any chance would it? With the ECU loom spliced together with bullet connectors :cuckoo: :lol:

 

The thin grey wire in the ECU loom is the K line. Run that down to a 16 pin K line block, which you can get from any post 94 VW. I would speak to / confirm with Vince to be honest, with regards to exact pin outs and what other wires join the K link block!

[Tekara 0]

This wouldn't be Nick's MK2 VR6 by any chance would it? With the ECU loom spliced together with bullet connectors :cuckoo: :lol:

 

Was it that obvious :lol: Yeah, thought id help him with something constructive considering I keep getting "do you think it could be...." calls from him.