2.3
DDEC SYSTEM–HOW IT WORKS
The fuel temperature sensor provides a signal to the ECM. The ECM utilizes the fuel temperature
signal to adjust the fueling for changes in the fuel density as a function of temperature to maintain
horsepower. See Figure 2-6.
Figure 2-6
Oil and Fuel Temperature Sensors
2.3.8
Electronic Control Module
The ECM is the brain of the computer system, receiving electronic inputs from the operator as
well as from the engine and vehicle mounted sensors. See Figure 2-7.
All information subject to change without notice.
2-10
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
