Yes. A bad temp sensor can cause a bad mixture in your fuel causing stalling even more so when the car begins to warm up. Replacing the sensor is very easy and very cheap (about 15-20$) and should be done first to eliminate it as a factor for other problems that could be very expensive (Fuel pump which costs about 250-350 depending on your make/model for instance)
Coolant Temperature Sensor
(based on a 96 civic LX) I believe the engine coolant temperature sensor is located on the side of the engine (opposite of the camshaft). If you need more details, I would recommend you to download the service manual on www.manualnguide.com
One sensor would be for your engine temperature gauge and the other sensor for the OBD II engine management system
Why would the temperature gauge indicate an overheated condition when the engine is not hot. It could be the gauge in the instrument panel. Unlikey however. More likely it is a bad coolant temperature sensor or the wiring from the sensor back to the instrument panel. Inspect the wiring and replace the coolant sensor. The sensor is not too expensive.
Coolant level would be a sensor going into the fill cannister on the left side of the engine bay. Temperature would be done with the sensor just below the EGR valve on the engine just above the transmission bellhousing. Tiny little wire going into a single plug sensor.
more likely to be a faulty coolant sensor or the thermostat is faulty and staying open
coolant temperature sensor is the right of the coolant outlet line on the top of the engine when looking at while standing in front of the truck. it has a black two prong clip attached to the sensor. the oil temp switch is to the left of the coolant outlet line. it has a single black wire coming off of it.
P0128: Engine Coolant Temperature is below the Thermostat Regulating Temperature Basically the Computer sees that the engine is running too cold. It could be that the thermostat is stuck open and the engine is actually too cold. Or it could be a bad temperature sensor, wiring to the sensor, or the PCM (computer) has a problem and is making a mistake. I would probably replace the thermostat and ECT (Engine Coolant Temp) Sensor first because both are inexpensive and relatively easy to change.
That would depend on which temeprature sensor you are asking about. Is it the coolant temperature sensor or the air charge tenerature sensor you are asking about?
If it is a temperature sensor, it is usually located on the top of the engine near the thermostat. If it is a "low coolant sensor", then it is located in the radiator (it will be the only item in the radiator that has a electric wire going to it) Either way, you would drain the coolant enough to be below the sensor, and then remove it and replace it with a new one. They are usually under $10-$20
Have you had the coolant temp sensor checked? It might be that the engine is running hot but the sensor isn't showing the temp is hot.
That would be the thermostat.