文档介绍：夏利电喷供油系统的维修
Maintenance of electronic fuel injection system for Xiali
Http://www. sina. com. cn 17:18 on April 5, 2001 status of the injector. If no sound or abnormal sound is heard, the wire connector, the injector or the injection signal from the ECU shall be checked. The circuit is shown in figure 5.
check the injector resistance. Remove the plug of the injector and measure the resistance between the terminals using an ohmmeter, as shown in figure 6. At 20 degrees, the resistance should be 14. 0~ ohms. If the resistance is not within the prescribed range, the fuel injector should be replaced.
check the injector fuel injection situation. Caution: the nozzle should be kept away from the spark during testing. The fuel injector is provided with a proper polyethylene hose to prevent spilled gasoline. The injector in the cylinder, with a jumper connection check connector B and FP terminals, as shown in figure 7. Switch the ignition to the ON position and be careful not to start the engine. Connect the fuel injector and battery with the maintenance tool (wiring), as shown in figure
15 seconds, the amount of fuel injection should be 40-50 cubic centimeters. The difference between the injectors shall be 5 cubic centimeters or less. Each injector is tested 2 to 3 times. If the fuel injection does not meet the requirements, you should replace the injector. Check the drip condi