"Neither. Most likely for knock sensor. check other side in same location. There will most likely be a round sensor threaded into the block. no oil or coolant present.
The temperature sensor for the coolant system is located on the front of the engine. The exact location of the coolant temperature sensor is dependent upon the year of the engine.
PATH: Engine Cooling > Coolant Temperature Sensor > Removal & Installation Removal & Installation Drain the engine cooling system slightly. Disconnect the negative battery cable. Detach the wiring connection from the sensor. Remove the coolant temperature sensor from the intake manifold. Clean the sensor area of any debris. To install: Install a new sensor into the intake manifold. Tighten the 6-14 ft. lbs. (8-19 Nm). Attach the sensor wiring to the unit. Connect the negative battery cable. Fill the engine cooling system with a 50/50 coolant water mixture. Start the engine and top off the cooling system.
One sensor would be for your engine temperature gauge and the other sensor for the OBD II engine management system
The coolant temperature sensor checks the coolant to let you know if overheating occurs. It also can send signals to the computer system to adjust the engine settings such as air/fuel mixture as needed to be more efficient based on engine temperature.
Follow the top radiator hose to where it connects to the engine . Looking from the front of the vehicle I believe the sensor on the left is for the engine temperature gauge and the sensor on the right is for the EEC-IV system
Replace the engine coolant temp sensor
The coolant level sensor in the coolant reservoir detects the coolant level is low. The coolant system must have a leak in it somewhere. Have a trusted mechanic diagnose it soon before you do damage to the engine.
this code is for the engine coolant temp. sensor. replace it.
By bleeding the coolant system.
Closed loop fueling not achieved bank 2 Possible causes - Fuel delivery system - Engine Coolant Temperature (ECT) sensor or wiring connectors - MAP sensor or wiring connectors - O2 sensor wiring or connectors - Engine mechanical system
It strains any impurities from the coolant.
This could be an indication that the engine coolant level is low. Check the fluid level when the engine is cool or take it in to get serviced. Low coolant allows air into the system and the sensor will read that the engine is hot.