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AUTOOL CT400 Fuel Injector Cleaning Tester with GDI Test
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester with GDI Test
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester
AUTOOL CT400 Fuel Injector Cleaning Tester
  1. AUTOOL CT400 Fuel Injector Cleaning Tester with GDI Test
  2. AUTOOL CT400 Fuel Injector Cleaning Tester
  3. AUTOOL CT400 Fuel Injector Cleaning Tester with GDI Test
  4. AUTOOL CT400 Fuel Injector Cleaning Tester
  5. AUTOOL CT400 Fuel Injector Cleaning Tester
  6. AUTOOL CT400 Fuel Injector Cleaning Tester
  7. AUTOOL CT400 Fuel Injector Cleaning Tester
  8. AUTOOL CT400 Fuel Injector Cleaning Tester
  9. AUTOOL CT400 Fuel Injector Cleaning Tester
  10. AUTOOL CT400 Fuel Injector Cleaning Tester
  11. AUTOOL CT400 Fuel Injector Cleaning Tester
  12. AUTOOL CT400 Fuel Injector Cleaning Tester
  13. AUTOOL CT400 Fuel Injector Cleaning Tester

AUTOOL CT400 Fuel Injector Cleaning Tester with GDI Test

Original price was: US$575.00.Current price is: US$509.00.

Key Features
  • Leak Test
  • Auto Voltage Match
  • GDI Support
Key Features
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AUTOOL CT400

Product Overview

The AUTOOL CT400 is a 6-cylinder fuel injector cleaning and testing machine for standard fuel injectors, GDI, EFI, and FSI long fuel injectors. It adopts GDI injector driving technology with 12V, 70V, and 120V voltage selection, ultrasonic cleaning, sprayability tests, leakage testing, reverse flushing, no-disassembly cleaning support, and organized accessory storage for workshop injector maintenance.

GDI / EFI / FSI 12V / 70V / 120V 6-Cylinder Design Ultrasonic Cleaning
6Injectors
12Functions
2000mlCleaning Tank
3 YearsWarranty
AUTOOL CT400 fuel injector cleaner and tester main product image with GDI EFI FSI support Click to enlarge
How To Choose

How To Choose

CT400 is positioned above 12V-only entry models and below the higher-end heating, wider-pulse, dual-pump, and 8-cylinder models. Use these decision points before ordering.

Need GDI Injector Support?

Choose CT400 if you need to clean and test standard injectors plus GDI, EFI, and FSI injectors with 12V, 70V, and 120V voltage selection.

Need 6-Cylinder Testing?

CT400 supports simultaneous cleaning or testing for 6 fuel injectors, making it more capable than 4-cylinder CT150 and CT160 models.

Need Accessory Storage?

Compared with CT200, CT400 adds GDI support and a practical drawer for injector adapters and accessories.

Need Heating?

CT400 does not include cleaning-fluid heating. Choose CT450, FN606, or FN608 if a 50°C heating cleaning tank is required.

Need More Test Modes?

Choose CT500 or FN608 if you need more advanced testing functions such as wide pulse injection or continuous injection test.

Need 8-Cylinder Capacity?

Choose FN608 if you need 8-cylinder injector testing and dual independent fuel pumps. CT400 supports 6 cylinders and uses one built-in pump.

Before You Order And Use

Before You Order And Use

Use the correct test fluid and cleaning fluid. Do not test injectors with corrosive cleaning fluid, and do not run the ultrasonic tank without fluid.

Use Test Fluid For Testing

Test fluid is a colorless, odorless, non-corrosive liquid used to check injector performance and simulate injector working conditions. Use professional injector test fluid for consistent results.

75%+ Alcohol As Backup

If professional test fluid is unavailable, medical alcohol with over 75% alcohol content can be used as an alternative for injector testing.

Do Not Test With Cleaning Fluid

Do not use corrosive cleaning fluid as injector test fluid. It may damage internal machine parts, corrode rubber, cause leaks, and may lead to repair costs.

Use Cleaning Fluid For Ultrasonic Cleaning

Cleaning fluid removes carbon deposits from injectors and is typically corrosive and flammable. Use professional ultrasonic cleaning fluid or engine carbon cleaning fluid.

Do Not Run Ultrasonic Tank Dry

Before using the ultrasonic cleaning function, add the carbon cleaning fluid first. Running the machine without fluid may damage the ultrasonic motherboard.

Single Injector Testing

When testing a single injector, plug the other 5 cylinders. CT400 comes with five plugs for this single-injector testing situation.

GDI Voltage Reminder

  • Select injector voltage according to the injector type. If unsure, increase gradually from 12V to 70V to 120V until the injector works correctly.
  • If the voltage is incorrect, the injector may not inject fuel or the machine may alarm. Adjust to the correct voltage in time.
  • Short-term incorrect voltage may not immediately damage the injector, but do not apply incorrect high voltage to an injector for a long time.
  • Do not use gasoline as a testing fluid, do not use corrosive fluids as test fluid, and keep flammable fluids away from open flames.
Key Features

Key Features

CT400 combines GDI injector support, multi-voltage selection, 6-cylinder testing, ultrasonic cleaning, a digital control panel, fluid recycling, accessory storage, and 3-year support.

GDI / EFI / FSI Injector Support

CT400 can clean and test standard injectors, EFI injectors, FSI injectors, and GDI injectors for direct injection engines.

12V / 70V / 120V Selection

The injector voltage selection supports 12V, 70V, and 120V for different injector types, helping cover more GDI and standard injector applications.

6-Cylinder Cleaning And Testing

Six injectors can be cleaned or tested at the same time to improve workshop efficiency and compare injector spray or volume performance side by side.

Ultrasonic Cleaning

The machine sends signals through the pulse signal line and uses ultrasonic vibration with cleaning fluid to help remove carbon and impurities inside injectors.

Smart Control Panel

The digital panel integrates function menu, working parameter display, voltage selection, pressure regulation, function buttons, and start / stop control.

Drawer And Fluid Recovery

A practical drawer helps organize adapters and accessories. The test fluid drain valve supports clear observation and recycling of test fluid.

AUTOOL CT400 ultrasonic cleaning function with adjustable working time Click to enlarge
AUTOOL CT400 compatible with standard EFI FSI and GDI fuel injectors Click to enlarge
AUTOOL CT400 injector voltage selection for 12V 70V and 120V Click to enlarge
AUTOOL CT400 practical drawer design for storing injector adapters and accessories Click to enlarge
AUTOOL CT400 smart control panel with function menu voltage selection and pressure regulation Click to enlarge
AUTOOL CT400 6-cylinder design for simultaneous fuel injector cleaning and testing Click to enlarge
Functions And Test Coverage

Functions And Test Coverage

CT400 provides 3 cleaning functions and 9 testing functions for injector cleaning, simulation tests, sprayability observation, leakage checks, reverse flushing, and no-disassembly cleaning with suitable adapters.

Ultrasonic Cleaning

Sends signals to the injectors through the pulse signal line and uses cleaning fluid with ultrasonic vibration to remove carbon and impurities inside injectors.

Speed Simulation Tests

Idle speed test, medium speed test, high-speed test, acceleration test, and shifting speed test simulate different engine working states and check injector behavior.

Sprayability Tests

Idle speed sprayability test, medium-speed sprayability test, and high-speed sprayability test help observe fuel injector spray pattern and performance.

Leakage Test

Tests the sealing condition of the fuel injector before further repair, replacement, or cleaning decisions.

Reverse Flush

Reverse flushing sends test liquid from the outlet to the inlet of the injector and may remove dirt inside top fuel supply injectors or injector strainers.

No-Disassembly Cleaning

Direct cleaning without disassembling injectors is supported as an additional function, but it requires special adapters.

AUTOOL CT400 12 functions available including ultrasonic cleaning idling test speed tests leak checking reverse flushing and no-disassembly cleaning Click to enlarge
Specifications

AUTOOL CT400 Product Specifications

CT400 is a 110V / 220V 6-cylinder injector cleaner and tester with 110ml test tubes, 2000ml cleaning tank volume, 70W ultrasonic cleaning power, one built-in pump, 9 adapter connector types, and 12V / 70V / 120V injector voltage settings.

Core Specifications
ProductAUTOOL CT400 Fuel Injector Cleaner & Tester
Input Voltage110V / 220V
Basic Functions3 cleaning functions / 9 testing functions
Supported Cylinders6 fuel injectors
Supported Injector TypesStandard fuel injector, GDI, EFI, FSI long fuel injectors
Supported Voltage Settings12V / 70V / 120V
Test Tube Volume110ml
Cleaning Tank Volume2000ml
Pulse Setting0-20ms
Time Setting Range0-10min
Simulated RPM Range0-7500rpm
Ultrasonic Cleaning Power70W
Built-In Pump1
Adapter Connectors9 types
Display And Design
Pressure Gauge DisplayYes
LCD DisplayYes
Test Liquid Level GaugeYes
Operating Condition Simulation TestYes
Cleaning Fluid Recovery ValveYes
Storage DrawerYes
Low-Impedance Injectors SupportedYes
Cleaning Fluid HeatingNo
Number Of Fuel Pumps1
AUTOOL CT400 product structure diagram showing lock pole injector connector glass measuring cylinder panel pressure gauge drawer oil rail and ultrasonic cleaning tank Click to enlarge
Core Specifications
ProductAUTOOL CT400 Fuel Injector Cleaner & Tester
Input Voltage110V / 220V
Basic Functions3 cleaning functions / 9 testing functions
Supported Cylinders6 fuel injectors
Supported Injector TypesStandard fuel injector, GDI, EFI, FSI long fuel injectors
Supported Voltage Settings12V / 70V / 120V
Test Tube Volume110ml
Cleaning Tank Volume2000ml
Pulse Setting0-20ms
Time Setting Range0-10min
Simulated RPM Range0-7500rpm
Ultrasonic Cleaning Power70W
Built-In Pump1
Adapter Connectors9 types
Display And Design
Pressure Gauge DisplayYes
LCD DisplayYes
Test Liquid Level GaugeYes
Operating Condition Simulation TestYes
Cleaning Fluid Recovery ValveYes
Storage DrawerYes
Low-Impedance Injectors SupportedYes
Cleaning Fluid HeatingNo
Number Of Fuel Pumps1
Product Comparison

Product Comparison

Compare CT400 with CT150, CT160, CT200, CT450, CT500, FN606, and FN608 before choosing the right cylinder capacity, injector compatibility, heating function, voltage range, pump configuration, and test functions.

CT400 Focus6-cylinder GDI / EFI / FSI cleaning and testing, 12V / 70V / 120V voltage selection, 2000ml cleaning tank, storage drawer, one built-in pump, and no heating function.
CT200 vs CT400CT200 supports 12V standard fuel injectors. CT400 supports standard injectors plus GDI injectors and adds a dedicated accessory drawer.
CT400 vs CT450 vs CT500CT450 adds pulse injection test and 50°C heating. CT500 adds wider pulse injection and continuous injection tests. CT400 and CT500 do not include cleaning-fluid heating.
CT150 / CT160 / CT200CT150 and CT160 are for 4-cylinder gasoline injector cleaning and testing. CT160 adds ultrasonic heating. CT200 adds two more testing cylinders for 6 total cylinders.
FN606 / FN608FN606 supports 6-cylinder testing with one pump. FN608 supports 8-cylinder testing and two independent fuel pumps, so one side can continue working if the other pump fails.
Decision CheckBefore ordering, compare supported cylinders, GDI compatibility, heating, voltage range, cleaning tank design, built-in pump quantity, and required test modes.
AUTOOL fuel injector cleaner and tester comparison chart for CT150 CT160 CT200 CT400 CT450 CT500 FN606 and FN608 Click to enlarge
AUTOOL CT400 packing list showing main unit adapters sealing rings harnesses oil rail power cable manual funnel and accessories Click to enlarge
What Is In The Box

What Is In The Box

The packing list image shows the CT400 main unit and included injector testing accessories. Final package contents should follow the package image and current product configuration.

Main UnitAUTOOL CT400 fuel injector cleaner and tester
Injector AccessoriesAdapter sets, injector connector parts, sealing rings, fittings, and accessories shown in the package image
Testing Setup PartsOil rail, glass measuring cylinder-related parts, signal wires / harnesses, and lock pole accessories shown in the package image
Single-Injector TestingFive plugs are included for testing a single injector while plugging the other five cylinders
Fluid HandlingFunnel, drain-related parts, ultrasonic cleaning tank cover, and fluid-related accessories shown in the package image
Documentation And PowerUser manual and power cable shown in the package image
Manual And Downloads

Manual And Downloads

Download the CT400 manual for setup, injector voltage selection, test functions, cleaning-fluid notes, accessories, and safe operation guidance.

AUTOOL CT400 fuel injector cleaner and tester user manual preview Click to enlarge

AUTOOL CT400 User Manual

Open the PDF manual for CT400 setup, operation, and maintenance information.

Download Manual

Need Setup Confirmation?

Contact AUTOOL Store before ordering if you need to confirm injector type, CT400 voltage selection, test fluid, cleaning fluid, adapters, package contents, diesel injector limitation, or CT400 / CT450 / CT500 / FN606 / FN608 model selection.

Email[email protected] WhatsApp+86 189 2647 7404
Related Products

Related Products

Compare related ultrasonic cleaning machines, injector testers, accessories, signal generators, measuring tubes, and fuel system cleaning tools before choosing the right setup.

Questions And Answers

These answers cover test fluid, cleaning fluid, ultrasonic cleaning, diesel injector limits, GDI voltage selection, single-injector testing, and CT400 comparison with other AUTOOL injector cleaner and tester machines.

Warranty And Contact

Warranty And Contact

For CT400 injector compatibility, GDI voltage selection, test fluid, cleaning fluid, adapter confirmation, single-injector testing, diesel injector limitation, model selection, accessories, manual support, or warranty questions, contact AUTOOL Store directly.

Pre-Sales And Product Support

Use support if you need help confirming whether CT400 fits your injector type, whether CT450 / CT500 / FN606 / FN608 is more suitable, which fluid to use, how to avoid corrosive testing-fluid mistakes, or which adapters are needed for your workflow.

  • 3-year warranty support for eligible non-human damage cases
  • GDI / EFI / FSI injector compatibility confirmation
  • 12V / 70V / 120V voltage selection guidance
  • Test fluid and cleaning fluid selection support
  • Ultrasonic cleaning and dry-run safety confirmation
  • Accessory, adapter, and packing list confirmation
  • CT400 / CT450 / CT500 / FN606 / FN608 model selection
Email Support[email protected] WhatsApp Support+86 189 2647 7404

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AUTOOL CT400 Fuel Injector Cleaning Tester with GDI Test
AUTOOL CT400 Fuel Injector Cleaning Tester with GDI Test

Original price was: US$575.00.Current price is: US$509.00.

Select options This product has multiple variants. The options may be chosen on the product page Official Quote Request