280Z EFI Inlet manifold ground wire

Out of curiosity what is the yellow wire for with the red crimp connector?

If you follow it in the photo IMG_0074 it goes under the High-Tension leads behind the dizzy to the temperature guage sensor.

The PO has been playing with mine too. I don't know why he cut it and rejoined it or maybe the wiring at the sensor was damaged and he replaced it all the way back to there.

I think the normal routing for that sensor wire is to dangle from the straps around the radiator hose (with the distributor wire), and I bet he wanted to route it along with all the other sensor wires up and over the intake instead.

My PO did the same thing, although he didn't have to add any wire length to make it happen. Mine was long enough without splicing.