I've noticed on my sister'* '92 SE that the temperature gauge stays on 40F. It'* either stuck or the sensor is malfunctioning. Is there a way to change or clean the sensor or is this something irrelevant?

(I'm in the process of finding/swapping out the MAF sensor on it as it gives SES code 34)

The radiator fan comes on normally and the gauge seems to have no impact on that.

Thanks.

Sounds like a bad sensor or disconnected. I've also seen a bunch of these basically break off from corrosion near the connector.

The sensor is located at behind the throttle body. Kinda pain to get at..but a deep socket worked good for me.

I think I've spotted it, it seems to be on the engine block behind/under the throttle body? Held by I think two screws. Seems to be hard to get to but I will try.

If it fails I suppose there'* no way to clean it or refurbish it, does anyone know the actual name so I can see what they ask for one at Auto Parts or a scrapyard?

Thanks again.

There are two sensors, and neither are held by screws, and neither are in the block. Both are in the lower intake manifold (the aluminum manifold under the black plastic one). They simply screw in. Large hex (brass), probably 5/8" or so (but metric) with a black 2-wire connector coming out of the hex. One is below the throttle body, the other is behind it closer to the #6 fuel injector.

One is for the gauge, the other is an input to the PCM.

The one with the black and yellow wires is for the ECM thats "not" the one you want.

just so you know

Also if you want to check to see if the gauge is working have a
friend in the car with the key "on" engine off and ground the senser
wire,,it should go to the far right "Hot" side

if you see the one under the intake....

Look to the right in back of the motor... you'll see another one... thats the temp one. mine broke, replaced it, temp gage works now

Maybe someone can help me find a good starting point. I recently had my codes scanned and this is the results.

Current Code P0125 Closed Loop
Min. Coolant temp not met in time

History Code P0113 Manifold Air Temp
(MAT) Sensor Signal High

History Code p0117 Coolant Temp Sensor
Sensor Signal High

Current Code P0125 Closed Loop
Coolant Temp Counter High Bit

History Code P0138 Oxygen Sensor
Catalyst 02 Sensor High

Current Code P0172 Fuel Trim
Sensor Signal Rich High Bit

Current Code p0172 Fuel Trim
Sensor Signal Rich Low Bit

History Code P0502 Vehicle Speed
Sensor (VSS) Low

History Code P0571 ABS Traction Control PWM
Signal Problem

History Code P0630 Battery Voltage
Signal Out Of Range

All of these must have came up over the last week. Since I had it scanned then to diagnose a TPS sensor problem.
The check engine light came on about three days ago and now stays on. The car has stalled on me a few times since and has lost power.
I replaced the battery today and the coolant temperature switch. The coolant temperature sensor and the MAT sensor will be done in the morning.
The sensors are all probably going bad. But I would really appreciate any advice.

Goblin, you're a bit off-topic in someone else'* post.

Please start your own topic.