Course Overview

A healthy fuel system is essential to maintaining peak performance. Most faults on modern High-Pressure Common Rail (HPCR) fuel systems go undiagnosed and lead to aftertreatment system failures and performance complaints. Technicians will gain an in-depth understanding of HPCR theory and operation as well as how to identify and properly troubleshoot common fuel system issues including common low-rail pressure fault codes.

Fleet HPCR Fuel System Training

HPCR systems operate at extreme pressures — tiny errors lead to massive failures. This course teaches techs to solve, not guess.

Why This Training Matters

• Injector sets often cost $4,000–$7,000+
• Misdiagnosis can destroy pumps or new injectors
• HPCR issues are the most misunderstood among technicians

What’s Covered

• Practical understanding of theory and operation of High Pressure Common Rail (HPCR) fuel systems
• HPCR work practices
• HPCR fuel system safety
• Fuel system cleanliness
• Effects of contamination
• Troubleshooting HPCR fuel systems
• Proper Diagnosis of Common Fuel Rail Pressure Fault Codes specifically the common Low-Rail Pressure fault code 559.

Hands‑On Labs

• Live return rate testing
• Simulated injector and pump failures
• Data‑driven rail pressure troubleshooting

Outcomes

• Fewer unnecessary injector replacements
• Faster identification of root‑cause failures
• Safer, more accurate diagnostics

A must‑take course for any technician working on modern diesel engines.