I'm in the process of fitting a Stage 3 closed-loop fuelling kit from Stu, and could do with a couple of bits of info

My car is a red-top 4x4, but the loom has a lambda sensor connection on the drivers side chassis leg. I've cleaned up the plug and put a meter on it. As far as I can tell, the wires are:

BN - Earth
BK - Heater +ve
BN/WH - Signal

Is this correct?

The other thing I could do with is an ECU pin-out diagram. I seem to remember there was one in the destructions for my SECS monitor, but god only knows where that is!

Can anyone help?

Cheers!

Neil.