New guide for 89-93
 

New install guide w/tips and tricks section.

I'll have the others out soon!

This guide is uber helpful, but I do have one question.
I'm helping install one in a 1990 1.6 miata that was bought second hand.
It doesn't appear to have come with a temp sensor, I have one to wire in, but the guide doesn't quite outline where the IAT sensor is to be wired to, I've looked at the plug and play loom (in the dark last night) but couldn't determine where to solder the wiring to.

Would you be able to point me in the right direction?

Cheers
NJ

Sure its going to be the Blue of J3 pin position 7 of the 20 pin. I cut the wire and spliced it. I think that is probably the best option. I've never done direct mod to the board, but most of it is covered in epoxy or hot glue.