DDEC MULTI ECM Air Temperature Sensor and Charge Air Temperature Sensor

The Air Temperature Sensor (ATS) is a thermistor type sensor that has a variable resistance when exposed to different temperatures. See Figure 3-4. The ATS provides necessary input for functions such as varying hot idle speed, fan control, and injection timing that results in improved cold starts and reduced white smoke.

See Figure 3-5, for the Charge Air Temperature Sensor used in the Series 2000 and Series 4000 engine applications.

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