









AUTOOL C100 Auto Fuel/Intake System Flushing Tools for Petrol Car
US$119.00 Original price was: US$119.00.US$90.00Current price is: US$90.00.
- Non-Dismantle Clean
- Adapter Coverage
- EFI or Throttle
- Non-Dismantle Clean: The tool is described for injector, throttle, and fuel-system cleaning without dismantling those parts.
- Adapter Coverage: The kit includes multiple adapters aimed at EU, Asian, USA cars, and light trucks.
- EFI or Throttle: Local instructions cover both EFI setups and throttle-style cleaning with different pressure guidance.
- 3-Year Warranty Main unit 3 years · Accessories 1 year
- 90-Day Returns Eligible returns within 90 days
- Official Store Genuine products · Direct support
Product Overview
The AUTOOL C100 is a petrol EFI fuel injector and fuel system cleaner kit designed for non-dismantle cleaning of fuel injectors, throttle valves, intake systems, TWC-related passages, and gasoline fuel supply systems. It includes multiple adapters for many European, Asian, and American cars and light trucks, and uses adjustable compressed-air pressure for different cleaning tasks.
Click to enlargeKey Features
C100 combines fuel system flushing, intake cleaning, throttle cleaning, pressure adjustment, and adapter coverage in one portable cleaner kit for gasoline vehicle maintenance.
Non-Dismantle Cleaning
Clean petrol EFI fuel injectors, fuel lines, throttle-related passages, and fuel system components without removing the injector assembly from the vehicle.
Fuel System Flushing
Helps improve fuel supply, support fuller combustion, and reduce exhaust emissions when used with the correct detergent and connection method.
Intake System Cleaning
Supports intake system cleaning to help reduce carbon deposits, improve the oil-gas mixture ratio, and smooth idle speed under proper service conditions.
TWC Cleaning Support
The kit includes TWC cleaning joints and can be used for TWC and intake manifold flushing procedures according to the user manual.
Adjustable Working Pressure
The pressure gauge and regulating valve help adjust air pressure for better detergent sprayability and safer cleaning across different systems.
Wide Adapter Coverage
The adapter kit covers many EU, Asian, and USA cars and light trucks, including commonly used hose couplings, vehicle adapters, clamps, and nozzles.
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Click to enlargeApplications
Use C100 for petrol vehicle fuel system cleaning tasks where the correct detergent, pressure, adapter, and connection method can be confirmed before operation.
Petrol EFI Fuel System
Suitable for gasoline EFI fuel injector and fuel supply system cleaning on supported petrol cars and light trucks.
Throttle Valve Area
Supports throttle body and related intake passage cleaning with the spray nozzle kit and correct low-pressure procedure.
Intake Manifold Flushing
Can be used with TWC detergent and the TWC flushing kit through the intake vacuum pipe procedure described in the manual.
TWC / Exhaust-Related Cleaning
Supports TWC and exhaust pipe flushing steps when matched with the correct detergent, nozzle kit, engine speed, and safety setup.
Related Guides
Choose the connection method according to the vehicle fuel system layout. Confirm the fuel inlet hose, return hose, adapter fitment, air source pressure, and leak-free connections before starting the engine.
| Pressure And Connection Summary | |
| EFI Fuel System | Find the fuel return hose, disconnect it, plug it with a suitable adapter, then connect the fuel inlet hose to the cleaner outlet hose with the proper adapter. |
| EFI Cleaning Pressure | Adjust the compressed-air source to about 40-50 PSI for EFI fuel system cleaning, then check all connection points before starting the engine. |
| Manual Pressure Reference | The manual describes adjusting air pressure within about 0.3-0.4MPa for fuel system flushing. |
| No Return Hose | If the vehicle has no return hose, remove the fuel pump fuse or disconnect the fuel pump power cable so the fuel pump will not work during cleaning. |
| Throttle / Carburetor Style | The connection method is similar, but the air source pressure should be adjusted to low pressure, about 1-5 PSI. The manual also gives a carburetor reference of 0.07-0.35kgf/cm². |
| Hose Identification | The inlet hose is usually larger, the return hose is usually smaller, a filter is often connected on the inlet side, a buffer is often on the return side, and arrows may show fuel flow direction. |
Pressure And Connection Summary
How To Use
Follow the correct connection method for the target system. Always add the proper detergent, use compressed air, check every connection for leakage, and release pressure before disconnecting the cleaner.
1. Identify Fuel Hoses
Find the fuel return hose and fuel inlet hose. The inlet hose is usually larger, and a filter is often connected on the inlet side.
2. Connect The Return Side
Disconnect the fuel return hose and plug it with a suitable adapter. Wrap disconnected connectors with a towel to reduce fuel splash risk.
3. Connect The Cleaner Outlet
Disconnect the fuel inlet hose and connect it to the C100 outlet hose with the proper adapter.
4. Handle The Fuel Pump
Connect the outlet and return hose of the fuel tank. If there is no return hose, remove the fuel pump fuse or disconnect fuel pump power so the pump will not work.
5. Add Detergent And Air
Pour the proper cleaning fluid into the C100 bottle, connect compressed air to the air port, and adjust pressure for the selected cleaning task.
6. Check And Clean
Check all connection points to confirm there is no leakage, then start the engine to clean the fuel system.
Additional Cleaning Procedures
- Throttle style cleaning: use the same basic connection logic but adjust the air source pressure to about 1-5 PSI.
- TWC and intake manifold flushing: pour TWC detergent into the bottle, connect the TWC flushing kit, insert the nozzle into the intake vacuum pipe, start the engine, and open the ball valve slowly so detergent enters the engine vacuum pipe gradually.
- TWC flushing time: the manual describes a flushing process of about 30-40 minutes, with engine speed raised at intervals according to the procedure.
- Throttle body and exhaust pipe flushing: connect the spray nozzle kit, remove the pipe ahead of the throttle, place the spray nozzle in the throttle body, start the engine, and open the fuel outlet ball valve.
- After cleaning: reconnect all pipes, drain pressure from the C100 bottle before disconnecting, and check that all fuel system pipes are restored without leakage.
Before You Order And Use
C100 works with gasoline fuel systems, detergent, compressed air, and a running engine. Confirm safe connections, correct pressure, ventilation, and fire protection before on-vehicle cleaning.
Petrol Vehicle Focus
The product content focuses on petrol / gasoline EFI vehicles. Confirm compatibility before using it on other fuel systems.
Compressed Air Required
C100 requires a compressed-air source. Adjust the pressure according to the target system and do not use excessive pressure.
Stop For Fuel Leaks
Stop the engine immediately if any fuel leakage is found. Do not continue cleaning until the connection is safe.
Prevent Splash And Fire
Wrap pipe connectors with a towel when disconnecting them to reduce splash risk, and keep a fire extinguisher nearby during on-vehicle cleaning.
Vent Exhaust Outdoors
Lead exhaust outdoors during on-vehicle cleaning because exhaust contains toxic and hazardous gases.
Secure The Vehicle
Place the transmission in neutral and apply the brake before on-vehicle cleaning.
Before And After Operation
- Wear protective gloves and protective clothing when operating the cleaner.
- Use only the detergent type required for the cleaning task and follow detergent instructions.
- Check every connection point before starting the engine; there must be no leakage during cleaning.
- Drain the pressure in the C100 bottle after flushing before disconnecting the cleaner.
- Restore all fuel system pipes after cleaning and confirm there is no leakage.
- After throttle body cleaning, the throttle position sensor may need to be initialized with an automotive scan tool to avoid a fault light or DTC.
Maintenance And Care
Regular care helps keep the C100 cleaner safe, stable, and ready for the next service job.
Check Connections
Regularly check parts that need tightening and connection. Tighten loose parts in time to support safe operation.
Protect The Housing
Avoid rubbing the product against rough surfaces, especially the sheet metal housing.
Prevent Corrosion
Clean and protect external and internal parts that contact chemical media to improve corrosion resistance and service life.
Avoid Overload
Follow safe operating procedures, do not overload the equipment, and eliminate unsafe factors in time.
Inspect Wires And Wear Parts
Check the circuit section and replace aging wires or worn parts when needed. Regularly clean or replace consumable parts such as the oil pump and oil filter when applicable.
Store Dry
When not in use, store the C100 in a dry place. Do not store it in hot, humid, or non-ventilated environments.
Click to enlargeWhat Is In The Box
The packing list image shows the C100 cleaner body, pressure regulator, gauge, hoses, funnel, clamps, nozzles, TWC cleaning joints, and multiple adapters for different vehicle fuel system connections.
Manual And Downloads
Download the AUTOOL C100 manual for fuel system connection diagrams, EFI cleaning, no-return-hose connection, throttle body cleaning, TWC and intake manifold flushing, maintenance, warranty, and safe-use instructions.
Click to enlargeAUTOOL C100 Fuel System Cleaner User Manual
Use the PDF manual to confirm connector setup, pressure adjustment, detergent path, engine operation, pressure release, and post-cleaning restoration before operation.
Download ManualNeed Fitment Or Setup Confirmation?
Contact AUTOOL Store before ordering if you need to confirm petrol vehicle compatibility, adapter fitment, cleaning detergent, compressed-air pressure, EFI connection, no-return-hose setup, TWC flushing, or package contents.
Questions And Answers
These answers cover petrol vehicle compatibility, compressed air, EFI pressure, throttle pressure, hose identification, no-return-hose setup, safety checks, throttle initialization, package contents, and warranty support.
The C100 product content focuses on petrol / gasoline EFI vehicles. Do not assume diesel compatibility from this page. Contact AUTOOL Store before using it on any fuel system outside petrol EFI applications.
Yes. AUTOOL C100 requires a compressed-air source. Connect the air source to the cleaner air port and adjust the pressure according to the target cleaning system.
The product page procedure uses about 40-50 PSI for EFI fuel system cleaning. The manual also describes adjusting air pressure within about 0.3-0.4MPa for fuel system flushing. Use the correct pressure for the vehicle and cleaning task, and check for leakage before starting the engine.
For throttle style cleaning, adjust the air source pressure to about 1-5 PSI. The manual also gives a carburetor fuel system reference of 0.07-0.35kgf/cm². Use low pressure and confirm the connection before opening the cleaner outlet.
Generally, the inlet hose is larger and the return hose is smaller. A filter is often connected on the inlet hose side, while a buffer is often on the return side. Some hoses also have arrows showing fuel flow direction.
If there is no return hose, remove the fuel pump fuse or disconnect the power cable of the fuel pump so the pump will not work during cleaning. Use the correct stopper or adapter according to the vehicle fuel system layout.
Check every connection point and make sure there is no leakage. Keep a fire extinguisher nearby, lead exhaust outdoors, place the transmission in neutral, apply the brake, and stop the engine immediately if any fuel leak is found.
The manual warns that the throttle position sensor must be initialized with an automotive scan tool after throttle cleaning. Otherwise, the fault indicator lamp may turn on and the PCM may record a DTC.
Refer to the Packing List image for final package contents. The kit image shows the C100 cleaner body, pressure gauge, regulating valve, universal hose quick coupling, leader air hose, universal fast connector, vehicle adapters, TWC cleaning joints, throttle cleaning nozzle, addition funnel, hose clamps, return pipe clip, thread plug, hose plug, and related accessories.
The manual states that the main unit has a three-year warranty from the date of receipt, and included accessories are covered by a one-year warranty. Warranty handling depends on the actual breakdown situation and does not cover damage caused by misuse, unauthorized modification, or failure to follow the instructions.
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Warranty And Contact
For C100 vehicle compatibility, adapter fitment, EFI connection, no-return-hose setup, throttle cleaning, TWC flushing, pressure settings, package contents, manual instructions, or after-sales support, contact AUTOOL Store directly.
Pre-Sales And Product Support
Use support if you need help confirming whether C100 is suitable for your petrol vehicle, which adapter to use, how to connect the inlet and return hoses, what pressure to set, or how to follow the manual safely.
- Petrol EFI vehicle compatibility and adapter confirmation
- EFI fuel system cleaning setup and pressure guidance
- Throttle style cleaning and low-pressure setup explanation
- No-return-hose connection and fuel pump fuse guidance
- TWC, intake manifold, throttle body, and exhaust pipe flushing questions
- Packing List and accessory confirmation
- 3-year main unit warranty and 1-year accessory warranty support according to the manual











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