Email This Page Section 5.1 Operation and Function The Electronic Control Module (ECM) monitors and controls engine performance to ensure maximum performance and adherence to…

Email This Page Section 4.2 Split-Shot Injectors Some Series 40E electronic engines are equipped with split-shot injectors. On these injectors the injection cycle is executed…

Email This Page Section 4.1 Injector Operation The injection operation is divided into three stages or cycles:‪ Fill stage Injection stage End of injection During…

Email This Page Section 3.3 Ipr Valve Operation The injection control pressure regulator valve is a pulse width (Duty cycle %) modulated valve operating at…

Email This Page Section 3.2 Injection Pressure Control The ECM controls the injection control pressure by operating the injection control pressure regulator (IPR). See Figure…

Email This Page Section 3.1 Injection Control Pressure System Operation The Injection Control Pressure system provides the necessary energy to hydraulically actuate the HEUI injector.…

Email This Page Section 2.2 Fuel Flow The fuel supply pump produces the necessary vacuum to draw the fuel from the fuel tanks. See Figure…

Email This Page Section 2.1 Fuel System Description The fuel system consists of three major subsystems:‪ Fuel Supply System Injection Control Pressure System Fuel Injector…

Email This Page Section 1.3 Abbreviations / Acronyms A/C—Air Conditioning‪ AC—Alternating Current‪ ACC—Accessory‪ A/D—Analog to Digital‪ AMP—Ampere‪ ASCII—American Standard Code for Information Interchange‪ AT/MT—Allison AT.MT…

Email This Page Section 1.2 Service Diagnosis Service diagnosis is a systematic procedure of investigation to be followed to locate and correct an engine problem.…