High Pressure Fuel System: Notes

The high pressure fuel system is mostly identical in design and function as compared to the European version. However, some components have been adapted to the different fuel specification.

Index	Explanation
A	Fuel feed (low pressure)
B	Fuel return
C	Fuel high pressure
1	Fuel rail pressure sensor
2	High pressure line
3	Leakage line
4	Piezo injector
5	Fuel rail pressure control valve
6	Return line
7	Feed line
8	Fuel temperature (or temp/pressure)
9	High pressure line
10	Fuel rail
11	Restrictor
12	High pressure pump
13	Volume control valve

These components are:

• High-pressure pump
• Fuel rail
• Fuel injectors.

These adaptations are restricted to different coatings and materials on the inside.