Thanks Bloz up.
I think I've figured it out. I went through all the 84-89 FSM EFEC sections. For 84-86 the single blade sensor by cylinder #2 was there for the turbo model only injector cooling fan. NA I don't believe had them.
For the 87-89 cars, there were no injector cooling fans, However, there is mention of a water temp sensor in the Electrical section for use in the digital gauge cluster. No mention for the analog.
On my 88T car, I have no water temp sensor, nor on my spare motor that came from an 88T car. Both cars have analog dash. On my 89T, I have the water temp sensor and digital dash.
This all came about from trying to repair the wiring damage from rats. What a PITA! I finished 10 of the 18 wires tonight. 8 more to go!