[elhsupra]

Correct
Gauge cluster temp sensor under distributor/manifold (single wire- Yellow/green)
Cold start temp sensor thermostat housing (two wire)
EFI temp sensor thermostat housing (two wire)
For a total of 3 temp sensors

 

[elhsupra]

chrisfromda909 - PM me with your email any I can send you a copy of the 82 wiring diagrams for the combination meter and EFI. The diagram shows wire colors as well. By the way is your 82 a Digital or Analog gauge?

This is from the 82 Wiring Diagram I can't find my 86 diagram right now
Single wire to Gauge sensor - Yellow /Green stripe
Dual wire to EFI sensor - Green one wire Brown the other
Dual wire to Cold Start Sensor - Green one wire Black the other

 

[elhsupra]

Red round connector - Yellow/red wire
Cruise Control Thermo Switch
Wiring Diagram does not show a real clear pic of exactly where it is but at least you now know what it is.

Let me know the colors of the wires on the other plug I'll try to find that to, if you want.