1. 295050-0421 Diesel Fuel Injector Common Part Number
295050-042, 295050-0420, 295050-0421, 295050-0422, 295050-0423, 295050-0424, 295050-0425, 295050-0426, 295050-0427, 295050-0428, 295050-0429, 295050-042#, 295050042, 2950500420, 2950500421, 2950500422, 2950500423, 2950500424, 2950500425, 2950500426, 2950500427, 2950500428, 2950500429, 295050042#
2. 295050-0421 Diesel Fuel Injector Application Scenarios
Common rail system is an oil supply method refers to the diesel oil from the fuel tank sucked out by the gear pump through the oil-water separator and the gear pump to diesel fine filter, high-pressure pump, common rail pipe, and fuel Diesel Fuel Injector, all together with the closed-loop fuel supply system composed of sensors and ECU that completely separates the generation of injection pressure and the injection process from each other.
| No. |
Name |
No. |
Name |
No. |
Name |
No. |
Name |
| 1 |
Tank |
5 |
Common Rail
Pressure Sensor |
9 |
Engine Crankshaft Sensor |
A |
High Pressure
Oil Circuit |
| 2 |
Diesel Filter |
6 |
Common Rail Pipe |
10 |
Camshaft Sensor |
B |
Low Pressure
Oil Circuit |
| 3 |
High-Pressure Pump |
7 |
Diesel Fuel Injector |
11 |
ECU Electronic
Control Unit |
/ |
/ |
| 4 |
Fuel Gear Pump |
8 |
Accelerator Pedal |
/ |
/ |
/ |
/ |
3. 295050-0421 Diesel Fuel Injector Installation Precautions
- The replacement of the diesel 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 diesel fuel injector, the fitting clearance of the diesel fuel injector connection, the installation angle and tightening torque of the diesel 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 diesel fuel injector.
- When installing the diesel fuel injector on the engine, it is necessary to clean the engine block, cylinder head and other parts connected to the diesel fuel injector, and ensure that there is no dust, carbon deposits, water, rust spots, etc.
- Before installing, check whether the diesel fuel injector nozzle gasket has been replaced and installed on the diesel fuel injector.
- When installing the diesel fuel injector, apply lubricant between the diesel fuel injector, fuel nozzle sealing gasket and O-ring.
- Without replacing new gasket can lead to: 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 diesel fuel injector and nozzle to break and cause damage to the engine.
- When installing the diesel fuel injector on the engine, please carefully check the components related to the installation of the diesel fuel injector, such as the diesel fuel injector pressure plate, screw, diesel 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 diesel 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 diesel fuel injector for a long time in a strong magnetic field environment.
4. Reasons for 295050-0421 Diesel Fuel Injector Not Work Normally
- There is air in the oil circuit of the engine fuel system.
- Vehicle oil pump oil supply system is not normal.
- 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 fuel
- The long-term placement of the diesel fuel injector causes the anti-rust oil to solidify, and the internal components are stuck or the oil holes are blocked.
Before installing, carefully check whether other components in the common rail system except the diesel fuel injector is damaged so as to prevent the diesel fuel injector from not working properly after being replaced.
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