Title: Perform on-engine inspections on 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 should include

- visually inspecting the EUI wires, solenoids, rocker arms, and valves
- checking the injector rocker arm clearance
- making any necessary adjustments.

Process/Skill Questions:

- What effect would it have on the injector if the rocker arm adjust is incorrect?
- What might cause one injector solenoid to fail?