I checked the sensor behind the timing belt cover on top of the engine. I am looking at my Haynes book and it is calling that one the "Engine Coolant Temp Sensor". That is the only one that am am seeing in the book. Is that the one for the dash? Where is the other one located? One thing that I hadn't noticed in the book before is a chart for resistance in ohms depending on the coolant temp for this sensor. I wish I would have seen the chart while I had everything apart. I should have my Ultra-Gauge tomorrow, but it would still be nice to know what my problem is.