All Honda told me was that I needed a new 'temperature sensor'...

So do I need the "switch" or do I need the "sending unit"...because one is $50 (switch) the other is $20 (sending unit)...??? I ask cause I just called a different place other than Honda and that's what they asked me...I didn't know what to tell them.

They told me I needed this because my fan 'never' shuts off...even when I am turning the key to start the car (II), after the first click the headlights and the fan start up and then the engine...the fan never stops...

The engine is a 90' d15b1 will the sensors from my old B2 that I just pulled out work with this engine?

Jason