Beck Arnley 158-1248 Temperature Sensor
It is used to sense the temperature of the engine at the computer to adjust the fuel mixture. When the computer senses that the engine is cold through the use of the sensor it will increase the on-time of the injector. This enriches the fuel mixture the same as using the choke. It also uses the sensor to determine when to turn the engine cooling fans on and off. Restore original engine temperature, proper engine idle, and proper air fuel mixture.