I have a 1979 280ZX (Canadian Car) and for a long time the Temp Gauge has been acting up and going clear over to hot past the 130 degree C mark. Yesterday I changed the sending unit on the block and today it stays there all of the time. HELP!...Suggestions would be appreciated. I used to own a shop manual for it, but it got swiped. does anyone know if the wire from the sending unit goes straight to the gauge or somewhere else first. Without taking the whole wireing harness loose. Ray B.