Can Fuel Injectors Be Repaired?

[JulianaLee]

Fuel injectors can be cleaned and repaired if they are clogged, but if the issue persists after cleaning, they need to be replaced. Faulty fuel injectors can lead to clogging, resulting in distorted fuel spray, poor atomization, inaccurate fuel delivery, reduced power, poor acceleration, increased fuel consumption, and excessive emissions. Methods to inspect electromagnetic fuel injectors: 1. Use the cylinder cut-off method to identify which cylinder's injector is faulty; 2. Connect a 12V power supply to one end of the injector's wiring socket and intermittently touch the other end to the engine body, observing for slight vibrations and listening for a "click" sound; 3. If there is no response, check the wiring connected to the injector for faults; 4. Inspect the fuel supply line for blockages; 5. Check if the injector's fuel inlet is clogged; 6. Verify if the electromagnetic coil is open-circuit and if the injector nozzle is blocked.