Temperature Gauge Sending Unit The sending unit is located in the front section of the intake manifold in the vicinity of the thermostat.
12 degrees with the coolant temperature sensor unplugged.12 degrees with the coolant temperature sensor unplugged.
The engine computer uses the coolant temperature sensor that is located close to where the upper radiator hose attaches to the engine to decide when to actuate the fan.The engine computer uses the coolant temperature sensor that is located close to where the upper radiator hose attaches to the engine to decide when to actuate the fan.
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The coolant sensor is also the temperature sensor, it can be found on the head under the distributor for 1.5 liter Civic motors prior to 1992.
code 22 needs (engine coolant temperature sensor replaced) don't know about the 25
The Engine Coolant Temperature sensor is on the back of the engine, right in the middle (and unfortunately the most difficult place to reach!). It is mounted on the coolant outlet that connects to the heater hoses up on the firewall. It is connected by a single electrical harness and screwed in. I can't remember exactly, but I believe you can get at it with a 17mm wrench size. The same answer will apply for 1990-2005 Mazda Miatas.
the left front side of your intake
I'm not a mechanic / technician but one sensor would be for the engine coolant temperature gauge in your dash and the other sensor is for the OBD I / EEC IV emission control system
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On my '91 it's below the thermostat.
If your standing in front of the car looking at the bumper the coolant temperature sensor will be on the driver side of the intake under the throttle body tube, it should have a black and yellow wire running to it, and under the sensor will be a pipe connector fitting, that pipe will run down toward the back of the engine.
The intake air temperature sensor is located on top of the intake. In a 1990 Toyota Camry the air temp sensor assures the ECU the engine is running at optimal temperature.