It is located on the right side(drivers side) HEAD just below the valve cover toward the firewall.
A bad engine temp sensor can do that.
Probably a bad thermostat.
where is the coolant temp sensor on a 2004 1.5 almera
A faulty engine temp sensor can do that.
Next to the thermostat housing.
temp sensor - sends signals to the computer for driveability temp sender - measures temp and sends to gauge in dash
Assuming this is a 4.3L engine, the engine temp sensor is located between #1 and #3 spark plugs.
Very close to the thermostat housing on the 4.3L and the 2.2L engines.
The temp sensor for the ECM (engine control module) is next to the thermostat housing.
Code 23 in your 1993 Chevy Blazer is referring to the Manifold Air temp sensor being out of range. Start by looking for the sensor to see if it is unplugged.
Yes it sure can.
The air temperature sensor in built into the Mass Air Flow sensor.