You have three sensors on this engine that work together to manage the temperature readings. i recommend checking all three to be safe. i will list the sensors and, locations below.
1. Coolant temperature sensor- Under hood, driver side, upper engine area, above transmission bell housing, mounted in driver side end of intake manifold.
2. Engine Temperature sensor- Under hood, driver side, upper engine area, mounted on rear cylinder head
3. Temperature switch.- Under hood, center, lower engine area, above oil filter, rear of coolant temperature sensor, mounted in engine block