Fuel Rail
WARNING: This page is about a different variant/trim than selected.
| ITEM | DESCRIPTION |
|---|---|
| A | High Pressure (HP) pipe connection - Fuel rail to fuel injector (4 off) |
| B | High Pressure (HP) fuel supply connection - High Pressure (HP) fuel pump to fuel rail |
| C | Low Pressure (LP) fuel return connection - Fuel rail to fuel filter (via a cooler) |
| 1 | Fuel Rail Pressure (FRP) sensor |
| 2 | Fuel rail |
| 3 | Fuel Pressure Control Valve (PCV) |
The fuel rail is secured to the cylinder head with two bolts. The fuel rail stores pressurized fuel from the High Pressure (HP) fuel pump, and prevents pressure fluctuations in the HP system. A Fuel Rail Pressure (FRP) sensor and a fuel Pressure Control Valve (PCV) are installed into the threaded bore at each end of the fuel rail.
The HP fuel pipes connect the fuel rail to the HP fuel pump and fuel injectors. A leak-off pipe connects the fuel rail to the fuel filter via a cooler.
The FRP sensor and fuel PCV are an integral assembly and must not be separated. If a fault occurs that requires component renewal, then the complete fuel rail assembly must be renewed.