A: 1. Replace the damaged gasket and seal ring and the injector O-ring, and apply oil to the injector O-ring;
2. Install the injector into the fuel distribution pipe and install the circlip;
3. Install the injector bracket on the fuel distribution pipe;
4. Install the injector into the injection port on the cylinder block, and install the fuel distribution pipe on the intake pipe, and tighten the bolt with a torque of 10 N·m;
5. Install the vacuum tube on the fuel pressure regulator
6. Install the intake hose and return line and tighten the retaining nut
7. Install the idle speed control valve and the connecting body, and tighten the bolt with a torque of 10 N·m.
8. Install the plug of the injector and the plug of the idle control valve