Features 1. Optional cleaning effect by powerful ultrasonic technique; 2. Adopt unique infinitely variable pressure adjustment; 3. Feature with protective device for pump overtime running (Our factory’s special); 4. Imitate nine running state of engine for choice; 5. Unique built-in LED light,easy to observe; 6. Suit to test the high/low resistance, voltage/current injectors; 7. Time or count test mode for choice; 8. The left external ultrasonic cleaner. Fit the discharge tap of ultrasonic cleaner; 9. Return fuel by solenoid valve; 10. 6 Cylinders Standard Electrical type.