AUTOOL CT 400
AUTOOL CT400 GDI Fuel Injector Cleaner & Tester User Manual
Model: CT 400
Introducció
The AUTOOL CT400 GDI Fuel Injector Cleaner & Tester is an advanced automotive tool designed for comprehensive cleaning and testing of various fuel injectors, including GDI, EFI, and FSI types. This machine utilizes ultrasonic cleaning technology and microcomputer oil pressure closed-loop control to simulate diverse engine working conditions, ensuring thorough cleaning and accurate testing of fuel injectors for automobiles and motorcycles. Regular cleaning and testing of injectors are crucial to prevent carbon buildup, maintain engine performance, optimize fuel consumption, and reduce emissions.
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your AUTOOL CT400 unit to ensure safe and efficient use.

Image: AUTOOL CT400 GDI Fuel Injector Cleaner & Tester with its complete set of accessories.
Configuració
Before operating the AUTOOL CT400, ensure all components are present and the unit is placed on a stable, level surface. Familiarize yourself with the machine's layout and connections.
1. Desembalatge i identificació dels components
Carefully unpack the main unit and all accessories. Refer to the packing list provided with your machine to ensure all items are accounted for. The unit features a portable drawer for convenient storage of various adapters and small parts.

Imatge: Més deview of the AUTOOL CT400 main unit and its comprehensive accessory kit.
2. Filling Test and Cleaning Fluids
The machine requires specific fluids for testing and cleaning. Use professional automotive injector test fluids for optimal results. As an alternative, medical alcohol with an alcohol content of more than 75% can be used, though the effect may vary for cleaning. Fill the respective tanks as indicated on the unit.
Video: Demonstrates the process of filling test liquid and cleaning solution, along with connecting injectors for cleaning and testing.
3. Connecting Injectors
The AUTOOL CT400 supports simultaneous cleaning and testing of up to six injectors. Securely connect the injectors to the appropriate ports using the provided adapters and cables. Ensure proper sealing to prevent leaks during operation.

Image: The 6-cylinder design allows for efficient simultaneous cleaning and testing of multiple injectors.
En funcionament
The CT400 features a smart control panel with a high-definition digital display for easy operation and monitoring. The bright LED background light enhances visibility during testing.

Image: The intuitive smart control panel of the AUTOOL CT400.
1. Neteja per ultrasons
This function uses ultrasonic vibration with cleaning fluid to thoroughly remove carbon deposits and impurities from inside the injectors. Place the injectors in the ultrasonic cleaning bath and set the desired working time on the control panel.

Image: The ultrasonic cleaning bath in action, showing injectors submerged for cleaning.
2. Fuel Injector Testing
The CT400 offers 12 injector-specific functions to simulate various engine conditions and test injector performance. It supports GDI, EFI, and FSI injectors and can drive 12V, 70V, and 120V high-pressure injectors.

Image: The CT400's compatibility with different types of fuel injectors.
Key testing functions include:
- Idle Speed Test (0-20ms): Simulates engine idling speed to test injector state.
- Medium Speed Test (0-7.5ms): Simulates engine running at medium speed.
- High-Speed Test (0-4ms): Simulates high-speed engine performance.
- Prova d'acceleració: Simulates car acceleration state.
- Shift Speed Test: Simulates car shifting state.
- Prova de fuites: Checks the sealing condition of the fuel injector.
- Idle Speed Sprayability Test: Tests spraying performance at idle.
- Medium Speed Sprayability Test: Tests spraying performance at medium speed.
- High-Speed Sprayability Test: Tests spraying performance at high speed.
- Reverse Flush: Cleans injectors by flowing test liquid from outlet to inlet.
- No-Disassembly Cleaning: Direct cleaning without disassembling injectors (requires special adapters).

Image: Display of various fuel injector test functions available on the CT400.
3. Injector Voltage Selecció
Select the appropriate injector voltage (12V, 70V, or 120V) on the control panel according to the injector type being tested. This ensures proper operation and accurate results for different vehicle brands.

Image: Control panel showing options for selecting injector voltage.
Manteniment
Proper maintenance ensures the longevity and accuracy of your AUTOOL CT400.
1. Fluid Management
Always use professional automotive injector test and cleaning fluids. If not available, medical alcohol with an alcohol content of more than 75% can be used as an alternative, but note that cleaning effectiveness may vary. The CT400 is designed to allow for recycling of cleaning fluid, which can be drained via the discharge valve.
2. Neteja de la unitat
Regularly clean the control panel and exterior of the machine to prevent dust and debris buildup. Ensure the ultrasonic cleaning bath is kept clean.
3. Sistema de refrigeració
The CT400 is equipped with a cooling fan to prevent overheating during prolonged use. Ensure the fan vents are not obstructed to allow for proper airflow.

Image: The intelligent cooling system of the AUTOOL CT400, designed for continuous operation.
Resolució de problemes
Refer to the following guidelines for common issues:
- Seguretat general: Always ensure the provided power supply is well connected with ground safety.
- Funcionament del tauler de control: Do not place anything on the control panel to avoid interference. Clean the control panel regularly.
- Hose Disconnection: Do not disconnect hoses before the system pressure reaches 0.
- Pressure Fluctuation: Electronic control pressure adjusting range is 0-0.65Mpa. Minor pressure fluctuation is a normal phenomenon during operation.
Video: Provides a visual guide to the machine's functions, including setup and operational aspects that may help in troubleshooting.
Especificacions
| Característica | Detall |
|---|---|
| Marca | AUTOOL |
| Model | CT 400 (Fuel Injector Cleaner) |
| Pes de l'article | 35.7 lliures |
| Dimensions del paquet | 18.2 x 18.2 x 17.2 polzades |
| Injector Compatibility | GDI, EFI, FSI (12V, 70V, 120V) |
| Capacitat de cilindres | 6-Cylinder Simultaneous Cleaning/Testing |
| Cooling System Power | 60W |
| Pressure Regulating Range | 0-0.65Mpa |
Garantia i Suport
AUTOOL stands behind the quality of its products. The CT400 GDI Fuel Injector Cleaner & Tester comes with a Three Years Warranty and Lifelong Maintenance. For any damage caused by non-human factors, AUTOOL promises to resend parts for free within 3 years.
For technical assistance, inquiries, or support, AUTOOL offers Atenció al client 24/7. Please contact us, and we will reply as soon as possible within 24 hours.

Image: AUTOOL's commitment to customer support, warranty, and product certifications.
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