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Chery T11 Service Manual Electric Injection System 13
The fuel pump lubricating and cooling are implemented with the help of the gasoline in the fuel tank. The fuel tank of this vehicle is a saddle-shaped tank, with two fuel pump openings. Decompression pressure: < 900 kPa Operating voltage: 8 to 16 V Fuel pump resistance: < 130 Ω
The injection pump in the reserve tank is used to pump the fuel return to the main fuel tank. Troubleshooting: The fuel pump failures are generally the fuel pressure shortage, non-pumping and etc. During the period of troubleshooting, examine the fuel pressure of the system is within the specified range, and also examine the leakage of pipeline. In addition, both the positive and the negative pressure will make influence on the fuel system.
8. Electromagnetic Injector (INJ) Application: MT 20U employs the sequential fuel injection technology. The sequential injection signals are provided by the intake pressure sensor (TEMP). If the TEMP is damaged, the mode of grouping injection is applied to control the fuel injection in accordance with the ignition sequence. Based on the instructions from ECU, the fuel injector injects the fuel within the specified time, offers engine the fuel and atomizes them. Structure and Principle: The ECU emits the electrical pulse to the injector coil, which forms the magnetic field force. When the magnetic field force rises up enough to conquer the resultant force of the return spring pressure, gravity force of needle valve and frictional force, the needle valve starts to rise, and the fuel injection process begins. When the fuel injection pulse ends, the pressure of return spring enable the needle valve to be closed again.
Profile of a electromagnetic injector
T11 Fuel Injector Group
Circuit diagram of electromagnetic fuel injector
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