1994 Oldsmobile Cutlass Supreme 3.1L V6.
Dear KK: can you show me a diagram or picture of where the
temperature control sensor is located and directions on replacing it. It
is a 3.1

The 1995 Oldsmobile Cutlass Ciera question for a pic of the coolant temp. Sensor.  Sensor for
the computer.(2-wire)

There is also a 1-wire sensor on the dr. side of the rear cylinder head for the dash gauge (if your
car has gauges).It has a green wire coming off of it. Either sensor is tricky to get to. Taking off the
air cleaner to throttle body duct can help.

Best way to reach rear sensor (1-wire) is with a short wrench.
Oldsmobile Cutlass Supreme Coolant temperature sensor location.
1- EGR removed
2- where 1-wire sensor would be
3- 2-wire sensor for computer / fans
Coolant temp sensor is below the throttle body assembly and next to the thermostat housing.
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Oldsmobile Cutlass Supreme Coolant Temperature Sensor Location