Title: Perform on-engine inspections on electronic unit injectors (EUI), hydraulic electronic unit injectors (HEUI), and system electronic controls.
Course: Diesel Equipment Technology III (20107-III) > Section: Diesel Engines: Servicing the Electronic Fuel Management System

Performance could include

- a visual inspection of EUI wires, solenoids, rocker arms, and valves
- a check of the injector rocker arm clearance
- an inspection of the high-pressure and low-pressure oil system
- any necessary adjustments.

ASE 5: I. Diesel Engines: G. Fuel System (P-1)

Process/Skill Questions:

- What effect would it have on the injector if the rocker arm adjustment is incorrect?
- What might cause one injector solenoid to fail?
- How could low engine oil affect the engine performance?
- What is the minimum pressure needed for the high-pressure oil system to activate the injector?