ANCEL JC400 Fuel Injector Tester & Ultrasonic Cleaner for PFI GDI & Piezo

  • Testing Functions：3-In-1 Injector Testing For Spray, Leakage, And Acceleration
  • Ultrasonic Cleaning：60w 28–46khz High-Frequency Deep Cleaning
  • Structure & Control：4-Cylinder 50mm Glass Tubes With Intelligent Control And Aluminum Body
  • Pressure System：1–20 Bar Closed-Loop Electronic Pressure Control
  • Injector Compatibility：Supports Pfi & Gdi Injectors (10.6–15.6/M12)
  • Power & Capacity：Ac 90–240v Wide Voltage And 1500ml Test Fluid Tank
  • Language Support：6-Language Interface For Global Users
$599.99 USD $419.99 USD SAVE 30%

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What's in the Box
JC400 Fuel Injector Cleaner *1
Accessories Case *1
Power Cord (US) *1
Power Cord (EU) *1
Power Cord (AU) *1
Hose *2
Signal cords *4
Signal convert cords *4
Funnel *1
Tube fixing rack *2
Ultrasonic Trolley *1
4-cylinder fuel distributor *1
Block screw *3
Φ10.6 adapter w/z O-ring *4
Φ11.6 adapter w/z O-ring *4
Φ12.6 adapter w/z O-ring *4
Φ13.6 adapter w/z O-ring *4
Φ14.6 adapter w/z O-ring *4
Φ15.6 adapter w/z O-ring *4
M12 adapter w/z O-ring *4
Locking nut *2
M6x250mm lead screw *2
$10 washer *4
$14 washer *4

Fast Delivery in 1-5 business Days

30-Day Hassle-free Returns

1-Year Warranty Protection

JC400

Fuel Injector Cleaner and Tester for PFI, GDI, and Piezo Injectors

JC400 Keeps Your Fuel System Performing Like New.

Why Do You Need a Fuel Injector Cleaner Machine?

As your engine burns fuel at high temperatures, carbon deposits gradually form on the injector tips and inside the tiny nozzle holes. Over time, gum and varnish residues also build up on the injector’s inner walls and valve surfaces.

These contaminants cause poor atomization, clogging, or even fuel leakage, leading to:

Increased fuel consumption / Loss of engine power / Rough idle or unstable RPM / Poor acceleration performance

A professional injector cleaner and tester like JC400 helps remove stubborn carbon and restore precise fuel delivery — making your engine run smoother and more efficiently.

Clean vs. Clogged Injector

Clogged injector causes poor spray pattern.

Clean injector ensures efficient combustion.

Wide Injector Compatibility – JC400

JC400 supports multiple types of gasoline fuel injectors, including Low-Resistance PFI (6V), Standard PFI (12V), GDI Peak & Hold (60–100V), and GDI Piezo (100–170V).

It provides full compatibility with both traditional and modern gasoline engines — from cars and motorcycles to small engines and marine vehicles.

With wide voltage adaptability and precise control, JC400 ensures accurate testing and cleaning for every injector type.

(Note: Diesel injectors are not supported.)

Types of Fuel Injectors

PFI Low-Resistance Injector

Suitable for all non-GDI low-impedance injectors (~2 Ω)

PFI High-Resistance Injector

Suitable for all non-GDI high-impedance injectors (14–18 Ω)

GDI Peak & Hold Injector

Directly injects fuel into the combustion chamber; controlled by a peak & hold current driver

GDI Piezoelectric Injector

Uses a piezo stack actuator for ultra-fast and precise injection control

JC400 Ultrasonic Cleaning

Powered by a 60W ultrasonic system operating at 28–46kHz, the JC400 generates penetrating ultrasonic shock waves and high-frequency vibrations. These vibrations reach deep into the injector’s internal channels— even microscopic passages—effectively breaking down and removing stubborn carbon buildup, gum, and deposits.

This deep-cleaning action restores the injector’s spray pattern, improves fuel flow, and enhances overall engine performance.

STEP1: Pour the cleaning fluid into the 0.8L ultrasonic tank and place the fuel injector inside.

STEP2: Connect the pulse signal cable, then select the ultrasonic cleaning mode to begin the process.

Ultrasonic Bath: It's recommended to use ready-to-use bottled ultrasonic fluid, or specialized ultrasonic cleaning powder. Should the above not be available, a mixture of water and the following items could be used as an alternative: Degreaser / Kitchenware cleanser / Sodium Bicarbonate

Accurate Testing for Spray, Leakage & Acceleration

JC400 integrates spray, leak, and acceleration tests to deliver precise and complete injector diagnostics.

NOTE: Injector Test Fluid: We recommend the use of ready-to-use bottled test fluid. Should such fluid not be available, the following items could be used as an alternative: Kerosene / Paraffin, Diesel. Never use ethyl alcohol or gasoline as test fluid, since they are highly flammable!

The Injector test bench comes with 1.5L fluid tank. Note the fluid level when refilling. Make sure that the fluid level does not exceed the max line.

STEP 1：Pour the test fluid into the tank, install the fuel injector onto the fuel distributor, and secure it to the main unit with the clamps.

STEP 2：Perform comprehensive testing by selecting different functions according to your needs.

Spray Ability Test

The spray test simulates the actual fuel injection process to check the injector’s atomization quality and spray pattern. It is mainly used when the engine runs unevenly, shows poor acceleration, or emits excessive smoke. By observing the spray shape and uniformity, users can determine whether the injector nozzle is partially blocked or delivering insufficient fuel.

This test helps identify fuel distribution issues that affect combustion efficiency and power output. It is recommended to use the spray test after cleaning to verify injector recovery.

When to Use:

Engine runs roughly or idles unevenly.

Poor acceleration or increased fuel consumption.

Visible smoke or poor combustion performance.

What It Solves:

Detects uneven atomization or partial injector blockage.

Improves fuel-air mixture for better combustion efficiency.

Confirms injector performance after cleaning.

Leakage Test

The leak test checks the injector’s sealing performance by maintaining system pressure and observing any signs of fuel leakage. This test is essential when the engine experiences unstable idling, fuel odor, or excessive fuel consumption.It ensures that injectors can maintain pressure without dripping after shutdown, preventing potential fuel waste, fire risks, and starting difficulties caused by pressure loss.

During the test, always ensure all injectors are securely fixed to prevent fluid spraying under pressure.

When to Use:

Smell of fuel around the vehicle.

Unstable idling or hard engine start.

Abnormal fuel consumption.

What It Solves:

Detects injector seal failure and fuel drips.

Prevents fuel waste and fire hazards.

Ensures stable fuel pressure after shutdown.

Acceleration Test

The acceleration test evaluates the injector’s response under variable pulse width and frequency, simulating different engine speeds and load conditions. It is particularly useful for diagnosing acceleration lag, poor throttle response, or uneven fuel delivery at high RPM.

By varying the injection frequency, users can check how quickly and accurately the injector reacts to changing signals.

This test ensures that injectors deliver the right amount of fuel across all speed ranges, improving responsiveness and overall engine performance.

When to Use:

Acceleration lag or throttle delay.

Poor performance at high RPM.

Irregular fuel delivery under load.

What It Solves:

Tests injector response under variable pulse width and frequency.

Ensures accurate fuel delivery at all speed ranges.

Improves throttle response and overall engine performance.

JC400 Operating / Device Schematic

The schematic illustrates the key components and functions of the JC400 device. For any operational questions or additional details, please refer to the product manual for guidance.

Engineered for Precision

Professional design details built for accurate testing, durability, and easy maintenance.

Wide Voltage Support

Supports 90V to 240V for global compatibility, no need for voltage converters.

Pressure Range (1–20 Bar)

Pressure adjustable from 1 to 20 Bar with closed-loop electronic control for precise testing.

Powerful Drive with Power Limiting

Strong drive with a built-in power limiting mechanism to prevent overloading.

60W Ultrasonic Cleaning

Powerful 60W ultrasonic system (28–46kHz) removes stubborn carbon buildup and residues.

Stable Fuel Supply

The JC400 uses an electromagnetic pump for stable fuel supply, with no contact between the drive and liquid, ensuring better compatibility and higher pressure testing.

Glass Tube for 4-Cylinder

The JC400 features 50mm glass tubes for 4-cylinder injectors, with no glue used in the entire glass tube assembly, making it fully dismountable for easy cleaning and maintenance.

Aerospace Aluminum Construction

Durable aerospace-grade aluminum ensures long-lasting performance and resistance to wear.

Versatile Injector Connectors

Supports 10.6/11.6/12.6/13.6/14.6/15.6/M12 connectors for most injector types.

Multi-Size Gaskets

Includes multiple gasket sizes to ensure perfect injector compatibility.

Pulse Signal Cable

The pulse signal cable required for ultrasonic cleaning can be easily replaced without disassembling the device, making it convenient for maintenance and ensuring long-term durability.

Multilingual Support

Supports Chinese, English, Spanish, Portuguese, Russian, and German for global users.

What's in the Box