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The AUTOOL fuel injector cleaner tester machine is an electromechanical device that combines ultrasonic cleaning technology with closed-loop oil pressure control. It simulates different engine working conditions, cleans and tests GDI, EFI, FSI, TSI, Piezo, and standard fuel injectors, and helps technicians check injection pressure, spray quality, and fuel volume. For a repair shop, injector cleaning is not only about removing deposits. It is also a diagnostic step for finding clogging, leakage, poor atomization, abnormal fuel delivery, and other faults that can cause hard starting, unstable idle, weak acceleration, high fuel consumption, failed emissions, and strong exhaust odors.
Injector Guide 01

A cleaner tester combines injector cleaning, flow testing, spray observation, and fault diagnosis

What Is an AUTOOL Fuel Injector Cleaner Tester Machine?

An AUTOOL fuel injector cleaner tester machine is designed to clean injectors, simulate engine operating conditions, and compare the working state of multiple injectors under controlled pressure and pulse settings. It can help a technician see whether each injector sprays evenly, seals correctly, and delivers consistent fuel volume.

The machine uses ultrasonic cleaning to remove carbon, gum, oil residue, and other deposits from injector surfaces and internal passages. At the same time, closed-loop oil pressure control keeps the test process stable, so the machine can reproduce idle, medium-speed, high-speed, acceleration, and leakage-test conditions more accurately.

Function What it helps check
Ultrasonic cleaning Removes carbon and gum buildup from injectors before testing.
Spray observation Shows spray pattern, atomization quality, dripping, and leakage.
Flow comparison Compares fuel volume between injectors to identify imbalance.
Pressure and pulse control Simulates engine conditions for GDI, EFI, FSI, TSI, Piezo, and standard injectors when supported by the model.

In practice, injector faults often appear as clogging, leakage, poor atomization, low flow, or inconsistent fuel delivery. A cleaner tester makes these problems easier to find before the injector is reinstalled on the engine.

Injector Guide 02

Dirty injectors reduce fuel atomization and make engine faults harder to diagnose

Why Choose an AUTOOL Ultrasonic Injector Cleaner Machine?

The fuel injector is a key part of the engine fuel system. It sprays fuel into the combustion chamber, where the fuel mixes with air and burns. Over time, carbon deposits, gum, oil residue, and impurities in air or fuel can block the nozzle and reduce atomization quality.

Cleaning and testing injectors helps restore stable fuel delivery, improve engine efficiency, and reduce common drivability problems. It is especially useful when a vehicle shows fuel-system symptoms but the technician needs evidence before replacing parts.

  • Hard startingDirty or leaking injectors can make starting difficult, especially cold starting.
  • Unstable idleUneven fuel delivery can cause shaking, rough idle, or stalling.
  • Weak accelerationPoor atomization and low flow can slow throttle response and reduce engine power.
  • High fuel consumptionAn injector that sprays poorly or leaks may waste fuel.
  • Failed emissionsBad spray quality can lead to incomplete combustion and strong exhaust odors.
AUTOOL fuel injector cleaner tester spray and flow test setup

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Fuel Injector Cleaning Machine for Sale

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Operation Guide

Many failures are caused by incorrect use rather than the machine itself

Common Mistakes That Damage the AUTOOL Injector Tester

Some users find that an injector tester stops working within one month or six months. Common failures include broken oil pumps, uncontrolled test fluid, failed alarms, and non-functional ultrasonic cleaning. In many cases, the cause is not poor quality. It is incorrect operation, especially wrong test fluid selection and poor after-use maintenance.

1. Mistakes in Test Fluid Selection

The type of test fluid directly affects the service life of an ultrasonic fuel injector cleaner machine. Using cleaning fluid instead of dedicated test fluid is strictly forbidden because many cleaning fluids contain strong chemicals for carbon removal. These corrosive ingredients can damage internal seals, pumps, and hoses, leading to permanent damage and high repair costs.

Using gasoline as test fluid is also very dangerous. Gasoline is highly flammable and volatile. Its vapors can cause fire or explosion near heat, sparks, or open flames. Impurities in gasoline can also damage the pump and seals.

2. Mistakes in After-Use Maintenance

Even when the correct fluid is used, the machine can still fail if the used fluid is left inside after operation. Used test fluid contains carbon, oil, and dirt removed from injectors. Over time, these contaminants can block or damage the pump, hoses, seals, and fluid passages.

No matter how often the machine is used, always drain test fluid and cleaning fluid after use. Then clean the ultrasonic tank, adapters, and working area before storage. This helps prevent buildup and extends the life of the ultrasonic injector cleaner machine.

Safety Guide

Correct fluid handling is the foundation of safe injector testing

Safety & Operation Tips for the AUTOOL Injector Tester

Follow these six rules to protect the operator, the machine, and the injectors being tested.

  1. Personal ProtectionWear safety goggles and chemical-resistant gloves to protect against cleaning fluid, test fluid, and oil splashes.
  2. Fluid SelectionUse carbon cleaner or injector cleaner in the ultrasonic tank. Use dedicated test fluid or medical alcohol in the glass tubes. Do not use gasoline and never mix fluids.
  3. Fire Safety & VentilationKeep the area well ventilated. Stay away from open flames, heat sources, sparks, and smoking.
  4. Proper GroundingMake sure the machine is correctly grounded before operation to reduce the risk of electric shock.
  5. Professional OperationOnly trained technicians should operate the fuel injector cleaner tester machine, especially when working with GDI, high-voltage, or high-pressure injectors.
  6. After-Use ProcessTurn off the power, drain all fluids, clean the ultrasonic tank and adapters, and keep the machine dry and clean.
Model Selection

Choose the machine by injector type, shop workload, and required voltage support

Top AUTOOL Injector Tester Models

Three popular ultrasonic fuel injector cleaner machine models cover most common user scenarios: home and DIY users, small and medium repair shops, and professional service centers. Each model has a different balance of functions, compatibility, capacity, and long-term value.

Entry level recommendation

Recommendation 1: AUTOOL CT160 4-Cylinder Ultrasonic Injector Cleaner Machine

The CT160 Ultrasonic Fuel Injector Cleaner Machine is designed for home users, small shops, and DIY enthusiasts. It is affordable, easy to use, and suitable for users who do not have professional injector-service experience.

This machine uses ultrasonic cleaning and closed-loop oil pressure control. It can simulate idle, medium speed, high speed, and acceleration, and it provides 9 test functions for checking injection volume, spray quality, and leakage. It can clean and test 4 injectors at the same time and includes a heating function to improve carbon removal.

The CT160 works with most standard car and motorcycle injectors and includes 5 adapters for common models. Its key benefits are small size, easy movement, a simple control panel, and good value for daily maintenance. It does NOT support GDI direct injection injectors.

Mid level recommendation

Recommendation 2: AUTOOL CT450 6-Cylinder Fuel Injector Cleaner Tester Machine

The CT450 Ultrasonic Fuel Injector Cleaner Machine is a practical choice for small and medium repair shops. It is designed for daily workshop use and supports deeper cleaning needs across a wider range of vehicles.

It uses 28kHz ultrasonic cleaning to remove stubborn dirt without damaging injectors. It supports 13 functions, including ultrasonic cleaning, reverse cleaning, idle test, and leak test. It cleans and tests 6 injectors at once, and its 6 test tubes make flow comparison easier to observe.

The CT450 supports 12V, 70V, and 120V injector drive requirements for GDI, EFI, FSI, and standard injectors, so it can work with vehicles such as Mercedes, BMW, Audi, and more. It also includes voltage error alerts to protect injectors, constant heating at 50°C for better cleaning, and a bottom drawer for adapter storage.

Professional level recommendation

Recommendation 3: AUTOOL FN608 8-Cylinder Ultrasonic Fuel Injector Cleaner Machine

The FN608 Ultrasonic Fuel Injector Cleaner Machine is built for large repair shops, 4S centers, and high-end service centers. It is suitable for complex luxury vehicles and multi-cylinder service work where capacity, compatibility, and precision matter most.

The machine uses a dual oil pump design. If one pump fails, the other can keep working, helping avoid interruption during service. The ultrasonic tank is detachable for long GDI injectors, and the machine can clean and test 8 injectors at once.

The FN608 supports mainstream injector types, including GDI, EFI, FSI, and TSI. It supports a wide voltage range of 12V / 12-70V / 120-180V, making it suitable for European, American, and Asian luxury cars. It also includes constant heating at 50°C, high-frequency ultrasonic cleaning, a clear color screen, and precise adjustment of pressure, time, and pulse width.

Recommendation Summary

Recommendation Summary

User type Recommended model Reason
Home / DIY users AUTOOL CT160 Easy to use, low cost, and enough for daily standard-injector care.
Small & medium repair shops AUTOOL CT450 Full functions, wide compatibility, 6-cylinder testing, and strong value for daily shop use.
Large repair shops & 4S centers AUTOOL FN608 Professional capacity, dual pumps, 8-injector testing, and support for luxury vehicles.

A high-quality ultrasonic injector cleaner machine helps repair shops improve service quality, diagnose injector faults more clearly, and solve problems caused by poor fuel delivery. It also expands the service range of a workshop and supports more standardized operation.

If you need help choosing the right model, contact us with your shop size, injector type, workload, and budget. AUTOOL can recommend a suitable injector tester for your operating needs.

Need model advice?

Contact AUTOOL for injector cleaner tester selection support.

WhatsApp: +86 189 2647 7404
Email: sales@autoolstore.com

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