ANCEL ANJ400 Ultrasonic Fuel Injector Cleaner & Tester for 4 Cylinders

With a 40KHz ultrasonic cleaning frequency and 70W of cleaning power, the ANCEL ANJ400 delivers professional-grade fuel injector service in a compact bench-top unit. It simultaneously cleans and tests up to four gasoline injectors, restoring spray patterns, flow rates, and leak-tightness without expensive shop visits.

Overview

The ANJ400 combines an ultrasonic bath, a programmable pulse-width driver, and a graduated test tube rack to evaluate injector performance under realistic conditions. Its metal and ABS housing houses a 1000 ml cleaning tank, a 120 ml graduated cylinder, and a 0–6.5 bar adjustable fuel pressure system. The LED digital display shows RPM, pulse width, and test mode at a glance.

What stands out

• Ultrasonic cleaning at 40KHz with 70W power removes varnish, carbon, and internal deposits.
• Tests spray pattern, flow rate, leakage, and reverse flush for MPI, SPFI, and TBI injectors.
• Supports up to 4 injectors simultaneously, with idle, medium, and high-speed pulse simulation.
• Built-in safety features include overload and short-circuit protection.
• Complete accessory kit: test fluid, cleaning fluid, adapters, funnel, and power cable.

Technical details

• Cleaning method: ultrasonic, 40KHz, 70W
• Test functions: spray pattern, flow rate, leak test, reverse flush, idle/medium/high speed
• Number of injectors: 4 (simultaneous)
• Compatible injector types: gasoline MPI, SPFI, TBI
• Power supply: AC 110V/220V ±10%, 50/60Hz
• Fuel tank capacity: 1000 ml; test tube capacity: 120 ml
• System pressure range: 0–6.5 bar (0–94 PSI)
• RPM range: 0–9999 rpm; pulse width range: 0–20 ms
• Operating temperature: -10°C to +50°C
• Display: LED digital
• Housing: metal & ABS plastic
• Safety: overload and short-circuit protection

Our verdict

The ANCEL ANJ400 is a versatile and reliable tool for DIY mechanics and small workshops looking to service fuel injectors in-house. Its ultrasonic cleaning and comprehensive testing capabilities make it a cost-effective alternative to professional services.