WHEEL & TIRE GP 2433554 - Caterpillar

The fuel position multiplier is an external input to the ECM. The input reduces the available fuel rack according to the magnitude of the signal. The fuel position multiplier can be considered as an external derating of engine power. Typically, the input is a means for reducing the engine power without changing the throttle signal.The ECM reads a Pulse Width Modulated signal (PWM) that is similar to the throttle signal. Usually, a converter is used to change the signal from the torque limit control into a PWM signal. An increase in the duty cycle reduces the available fuel. For example, if the engine power output is 100 percent and the signal from