Dang4699

1 hour ago, Mackpro said:

I believe those two connections are the same towards back of head . Got them plugged into the wrong sensorharness . swap them and  see what happens 

I checked voltage at both of those connectors at back of head.  One has ground and no power and the other has 13.9 volts and an open.  Either way I plug them in the fan stays on and no coolant temp and also pyrometer gauge is not working either.  Now if I run a ground wire to the fan control solenoid then I can get fan to shut off but still no temp.  

I’m at a loss.  I replaced engine harness and now I have a loss of ground somewhere. Yes I have checked and rechecked all connectors.  My cooling fan stay on and also I do not have coolant temp  any help would be appreciated