FYI, t was 69 bucks but I sent him a best offer of 50 + shipping and he took it.

http://cgi.ebay.com/ebaymotors...l1116

So where do the other wires go? hehehehehehe

Will be really useful on the dyno.....if I ever get it finished.

This is what I have found.

Q45 side:
Brown and Yellow > Pin 21 on VH ECU
Black and Blue > Pin 22 VH ECU
White > Pin 47 VH ECU
Brown and White > Pin 31 VH ECU
Brown > Not sure, speedo?
Black > Body earth

Z32 Side:
Blue > Pin 21 VG ECU
White > Pin 22 VG ECU
Orange > Pin 31 VG ECU
Black and White > Pin 47 VG ECU
Green > Not sure, speedo?
Black > Ground

No guarantee that those colours are right on the VH side, I have a '93 Jap Spec motor and am trying to use '94+ US Spec Q45 diagrams. Pinouts appear to be the same though and the motor runs.

I've matched up the pin numbers for the 2 ecu's so that the VH Pin 21 is connected into where Pin 21 from the VG ecu used to go.

This is what Nick had in his VH to Z32 wiring sheet, and makes sense from the wiring diagrams I have.

I'm using a ECUTalk readout rather than the usual laptop connection. I have verified it work on a mates Z32. According to the ECUTalk people it has worked on VH's before (I've seen one working with my own eyes).

So what's the problem? Any suggestions.

I'm just going to try my spare ECU and see what happens...