1. Failure profile; The gas nozzles is an important component of the engine, mainly responsible for receiving the signal from the computer ECU and receiving the command to spray the oil. General use of the oil pulse width to determine. In general, there will be engine jitter after failure, or even fire.
2. Required tools; (1) automobile special detection multimeter. (2) shida tool 124 pieces (3). Stethoscope.(4) special test light for automobiles (5).
3. Method; (1). Use the test lamp to check whether the wiring harness on the nozzle is dc power supply.
(2) use a multimeter to check whether the wiring harness on the nozzle of the nozzle has a direct current of about 12 volts. If there is no power supply or low power supply, check if the power supply line is in the position of iron, resulting in low working power of the injector.
(3). Listen to the work sound of the injector by the stethoscope and whether there is a rattling noise.
(4) if there is a power supply voltage. It is possible to use a multimeter to test the signal line of the injector to the computer stitching. Or check if there is a short circuit or iron.
4. Matters needing attention; (1) the car USES direct current, and the multimeter hits DC position to test the voltage.
(2) pay attention to the protection and protection of the line.
(3). Pay attention to the correct use of the fender guard and protect the vehicle. Pack up
