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How To Clean Fuel Injectors Without Removing Them
04
Jul
Jul
Are you still troubled by cleaning fuel injectors? Fuel injectors are a crucial component of the engine’s fuel system. Though small in size, their performance directly impacts engine efficiency! Let’s take a look at everything you need to know about cleaning fuel injectors!
1.When do you need to clean fuel injectors?
The needle valve assembly of a fuel injector is very delicate and relies on fuel lubrication during operation. It is sensitive to water. Contaminated fuel (water, gum, etc.) causes injector needle valve wear and fuel leakage. Carbon buildup at the tip and clogged valve holes impair atomization and fuel flow, necessitating cleaning.</div>
When the fuel injector’s valve hole is clogged or leaking, the air-fuel mixture ratio becomes incorrect, which can lead to engine issues such as rough idle, loss of power, or increased emissions.
2.Causes of Carbon Deposits in Fuel Injectors
Fuel injectors spray directly onto the intake valve neck—a hotspot reaching 300°C. This high temperature causes gasoline’s gum and non-volatile substances to accumulate, forming porous carbon deposits. These deposits further attract gasoline, resulting in more carbon buildup.
Gum deposits inside the fuel injector reduce the actual flow area of the spray holes. To maintain the proper air-fuel ratio, the computer typically compensates by extending the injection time. This results in an increasing air-fuel ratio adjustment (fuel correction) value. Similarly, if the air-fuel ratio adjustment (enrichment value) is too high when not accelerating, the enrichment effect during acceleration will worsen, leading to poor acceleration performance.
3.How to Clean Fuel Injectors
Now that we know how carbon buildup harms fuel injectors, let’s examine cleaning methods. Repair shops typically use two approaches: non-disassembly flush cleaning and ultrasonic cleaning.
- Non-Disassembly Cleaning Machine Cleaning: This method circulates the cleaning solution through the engine’s fuel system pipeline, replacing the fuel. The engine burns the cleaning solution, removing carbon from cylinders and injectors before expelling residue via the exhaust. This non-disassembly method’s key benefit is speed and convenience—no injector removal required. However, the drawback is that you cannot visually inspect the injectors’ cleaning effectiveness.
- AUTOOL C100 Fuel Injector Cleaning Kit features both high-pressure and low-pressure cleaning functions, allowing for non-disassembly cleaning of the fuel system. This non-disassembly injector cleaning kit is suitable for cleaning fuel injectors. intake systems, and catalytic converters, effectively removing carbon deposits quickly.
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AUTOOL C100 Auto Fuel/Intake System Flushing Tools for Petrol Car
$85.90 – $409.00
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- Adjustable Working Pressure: The Autool C100 Leak-Free Cleaner is equipped with a specially treated one-way valve for gas sealing and a durable pressure regulator. The adjustable pressure gauge can reach up to 150 PSI. The fuel injector cleaner tool kit includes a 1000 m cleaning tank made of high-quality stainless steel, which is corrosion-resistant and wear-resistant.
- EFI – Electronic Fuel Injection System: The electronic fuel injection system is divided into two types: throttle type and electronic injection-type. One type of engine has a return fuel hose, while the other does not. Throttle-Type: The connection method is the same as the electronic fuel injection system, requiring only the adjustment of the air source pressure to 1-5 PSI.
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- Storage and Precautions: The fuel system cleaner kit comes with a heavy-duty blow-molded plastic case, which protects the product and makes transportation easier.>
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Note: This automotive fuel injector cleaning kit is only suitable for gasoline engines and is not compatible with diesel engine fuel injectors. The kit does not include any cleaning fluid.
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Ultrasonic Cleaning: Technicians remove the fuel injectors and place them on a cleaning device. The cleaning process uses ultrasonic waves to clean the injectors while cycling them in an on/off electrical state. After cleaning, technicians test the injectors’ atomization, response, and potential fuel leakage. This method requires removing the injectors, but it allows for visual assessment of cleaning effectiveness.
-21%
Original price was: $779.00.$619.00Current price is: $619.00.
-23%
NEW
Original price was: $689.00.$529.00Current price is: $529.00.
-13%
$349.00 – $409.00
4. Conclusion
There is no fixed time interval for cleaning fuel injectors. We generally recommend cleaning fuel injectors every 30,000 km. However, if you consistently use high-quality fuel from large, reputable gas stations, you can extend the service interval to 40,000-60,000 km. In conclusion, fuel injectors, as one of the essential components of the engine, require proper maintenance and cleaning, not neglect. Regular cleaning of fuel injectors can improve their performance and extend their lifespan.
Want to learn more about fixing your car? Stay tuned to our blog for updates and feel free to discuss in the comments section or contact us via WhatsApp.
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