The VP44 Diesel Pump Tester is a specialized diagnostic device designed to simulate the Electronic Control Unit (ECU) of a vehicle to test the performance of VP44 injection pumps. It allows technicians to accurately measure oil quantities under various conditions—including Zero Oil, Start, Optimal Efficiency, and Max Oil—by controlling cam speed and PWM duty cycles. This tool is essential for professional diesel repair shops looking to verify pump functionality before or after maintenance.


Multi-Cylinder Support: Easily switch between 4-cylinder and 6-cylinder cam types with a simple button press.
Precision Control: Adjust the PWM duty cycle via a rotary knob or direct touch-screen input for granular testing accuracy.
Comprehensive Data Tracking: Monitors standard vs. actual oil quantities across four critical testing steps (Zero, Start, Efficiency, Max).
Multi-Language Interface: Built-in system settings support Chinese, English, and Russian for global usability.
Safety Features: Integrated protection current and regulated current time settings to prevent damage during high-load testing.
Real-Time Diagnostics: Provides immediate feedback on whether the pump's oil output meets standard specifications under stable speeds.
| Parameter | Specification / Feature |
|---|---|
| Compatible Pump | Bosch VP44 |
| Cylinder Support | 4-Cylinder and 6-Cylinder |
| Control Interface | Touch Screen + Rotary Knob + Physical Buttons |
| Testing Steps | Zero Oil, Start, Optimal Efficiency, Max Oil |
| Variable Settings | Cam Speed (RPM), PWM Duty Cycle (%), Trigger Pulse |
| System Language | English, Chinese, Russian |
| Current Settings | Lifting Current (450µs), Protection Current (15000mA) |



