Working Principle:

The FN603 drives up to six fuel injectors by sending controlled electrical signals that mimic real engine operation. Users can adjust pulse width, frequency, and voltage levels (12V, 70V, or 120V) to match different injector requirements and simulate various working conditions.

During testing, a pressurized fluid system distributes liquid evenly to each injector, allowing technicians to directly observe differences in spray pattern, fuel delivery, leakage, and atomization. The transparent measuring cylinders make it easy to compare performance between injectors at a glance.

For cleaning, the unit applies ultrasonic vibration together with a heated solution to loosen and remove carbon deposits and residue. This process reaches internal passages without the need to dismantle the injectors. By combining testing and cleaning in one workflow, the FN603 provides an efficient way to recover injector performance and maintain proper fuel system operation.

Cleaning Functions

• Heated Ultrasonic Cleaning: Uses 28kHz high-frequency ultrasonic waves with an automatic heating system (up to 50°C) to efficiently remove carbon, oil, and gelatinous residues.

• Reverse Flushing: Test fluid flows from the outlet to the inlet of the injector to effectively remove debris from internal passages and the strainer (applicable to top-feed injectors).

• No-Disassembly Cleaning: Allows cleaning without removing the injector from the engine; requires special adapters.

Testing Functions

• Idling Test (0–20ms): Simulates engine idle conditions to evaluate injector performance.

• Medium Speed Test (0–7.5ms): Simulates medium-speed engine operation.

• High-Speed Test (0–4ms): Simulates high-speed engine operation.

• Acceleration Test: Simulates vehicle acceleration to assess dynamic injector response.

• Shifting Speed Test: Simulates gear shifting conditions to evaluate injector performance.

• Leak Checking Test: Tests injector sealing under static pressure.

• Idling Spray Value Test: Measures injection volume under idle conditions.

• Medium Speed Spray Value Test: Measures injection volume under medium-speed conditions.

• High-Speed Spray Value Test: Measures injection volume under high-speed conditions.

• Pulse Injection Test: Simulates various dynamic operating conditions by adjusting pulse width and frequency to evaluate response time, atomization quality, and overall injector performance.

Equipment features

• Multi-Voltage Selection: Supports 12V, 70V, and 120V output; intelligently recognizes GDI injector drive voltage to prevent misconfiguration and damage.

• Wide Compatibility: Includes 9 adapters and dedicated BMW injector adapters, compatible with most automotive injectors on the market.

• 6-Cylinder Synchronous Testing: Features 110ml transparent explosion-proof glass cylinders, supporting up to six injectors tested simultaneously.

• Adjustable Working Time: Cleaning duration can be adjusted up to 10 minutes based on injector contamination level.

• Injector Protection: The self-protection function prevents damage when testing GDI injectors.