Thanks for all the info! We had success with the temp gauge last night!

Now, it's on to the oil pressure gauge. It's pegged at "3" at all times the key is on. After removing the key, it sticks at the top but will drop after a gentle pounding on the top of the dash.

It does this with the sensor connected or not so I suspect it's in the dash somewhere. Also, another question about the sensor:

When I measure impedance to ground, there is never any reading - car running or not. Should there not be a sliding scale based on the oil pressure at any given moment?

I even tested impedance to the sensor housing to ensure a good ground.

Thanks for the thoughts.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250