I have an 87 IROC-Z The original engine was pulled before me to a carb. So as you all can imagine any unused wire's were cut and left. I have been going through the schematics over the last few days and can't seem to locate a few wire's. I am looking for a diagram that might show the Instruments, ie volt tach wtr temp etc. I need to find the tach wire i believe its white but want to be sure.
Thanks

 

Yep - tach wire should be white (my 87 GTA was). My best source of schematics has been autozone's website. Just register, add the car, and you'll have access to alot of electonic diagrams.

 

http://www.austinthirdgen.org/index.php?pid=19

All the haynes diagrams plus several service manual scans

https://www.thirdgen.org/forums/ltx-...formation.html

More info about your gauge wiring in there

 

Thanks Alot guys a REAL BIG help. Problem solved thanks to your help.