Diesel Injector Testing

 At Ultimate Injection, we use a computerized test bench to evaluate your injectors under real-world operating conditions with exceptional accuracy.
Our system is compatible with Bosch, Denso, Delphi, and Siemens injectors, ensuring proper testing across a wide range of diesel platforms.

Each injector undergoes a full series of diagnostics, including high-pressure nozzle and control valve leak testing, start behavior analysis, idle calibration, and full-load flow testing.
From these tests, we can precisely identify which injectors need service or replacement — helping you avoid unnecessary part costs.

Proper testing means accurate results, faster troubleshooting, and lower repair bills, getting you or your customers back on the road with confidence.

Our warranty-approved testing process meets OEM and industry standards to verify injector performance under true operating conditions. Each injector is evaluated for consistency, precision, and reliability.

Testing Includes:

• High-pressure nozzle & control-valve leak testing
   
• Injector start behavior (without return-flow counter-pressure)
   
• Full-load fuel-quantity verification
   
• Electric solenoid “buzz” test
   
• Pilot & idle injection quantity tests
   
• Emissions-quantity measurement
   
• Actuator resistance check
   
• Nozzle inspection and analysis
   

Comprehensive data, OEM-level accuracy, and full documentation — ensuring every injector meets warranty standards.