Engine Oil Temperature (EOT) Sensor
DESCRIPTION: The oil temperature sensor is located on the back of the right cylinder head. The oil temperature sensor is a two wire sensor with a tapered threaded sensor probe. The sensor probe is mounted to the cylinder head through an access hole. A thread lock patch seals the oil temperature sensor to the cylinder head.
| 1 - EOT Sensor |
OPERATION:
The oil temperature sensor is a variable resistor that measures the temperature of the engine oil. The Powertrain Control Module (PCM) supplies a 5 volt reference and a ground to the sensors low reference signal circuit. When the oil temperature is low, the sensor resistance is high. When the oil temperature is high, the sensor resistance is low.