Fuel injector detection method

You can use the LED test light to connect the LED test light to the two sockets of the injector plug and turn on the ignition switch.

(1) Start the engine, if the LED light is still off, it means that the C pole and E pole of the triode are open circuit.

(2) When the engine is started, the LED light will flash, indicating that the sensor and the computer are not good

(3) If the LED light is always on, it means that the C pole and E of the triode are extremely short.