1. 1933612 Diesel Injection Technical Support
1.1. 1933612 Diesel Injection Part Number Location
E.g.：See the diesel injection part number as follows:
| No. |
Name |
| A |
Brand, logo, coding |
2. 1933612 Diesel Injection Installation Precautions
- The replacement of the fuel injector must strictly follow the electrical system, the approved pressure of the low-pressure fuel intake system, the approved pressure of the high-pressure fuel circuit system, and fuel system replacement consumables requirements (including the low-pressure fuel circuit system filter and the high-pressure fuel circuit) specified in the vehicle engine maintenance manual;
- Replacement of wearing parts of the fuel system, cleaning requirements for the connection between the fuel system and the fuel injector, the fitting clearance of the fuel injector connection, the installation angle and tightening torque of the fuel injector, the fitting clearance of the intake system, and the fitting clearance of the exhaust system to ensure the service life of the engine and the normal operation of the fuel injector.
- When installing the fuel injector on the engine, it is necessary to clean the engine block, cylinder head and other parts connected to the fuel injector, and ensure that there is no dust, carbon deposits, water, rust spots, etc.
- Before installing, check whether the fuel injector nozzle gasket has been replaced and installed on the fuel injector.
- When installing the fuel injector, apply lubricant between the fuel injector, fuel nozzle sealing gasket and O-ring.
- Failure to replace the gasket with a new one may result in: deformation of the tight cap of nozzle, deformation of nozzle, deformation of nozzle orifice, oil leakage and air leakage, which will cause serious damage to the fuel injector and nozzle to break and cause damage to the engine.
- When installing the fuel injector on the engine, please carefully check the components related to the installation of the fuel injector, such as the fuel injector pressure plate, screw, fuel injector rod and other accessories are not deformed, and install it in strict accordance with the operation steps of the engine maintenance manual.
- It is forbidden to operate the bare fuel injector for a long time in an environment with serious dust pollution and corrosion to iron products.
- It is forbidden to operate the bare fuel injector for a long time in a strong magnetic field environment.
3. 1933612 XPI Injector Reasons for Not Working Normally
- There is air in the oil circuit of the engine fuel system.
- Vehicle fuel XPI injector fuel supply system is abnormal.
- Engine common rail system oil leakage or pressure limiting valve damage.
- There is a short circuit, cutting out and poor contact in the wiring harness connected to the XPI injector of the vehicle.
- The long-term placement of the XPI injector causes the anti-rust oil to solidify, and the internal components are stuck or the oil holes are blocked.
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