Volkswagen Passat 2012 Service Training page 23

7
9
10
10
1
Color Coding/Key
High pressure
Supply pressure
Return pressure from injectors
Return pressure
6
10 10
6 - Fuel Pressure Regulator Valve N276
Sets the fuel pressure in the high pressure range.
7 - High Pressure Accumulator (rail)
Keeps the fuel required for injection under high
pressure for all cylinders.
8 - Fuel Pressure Sensor G247
Determines the current fuel pressure in the high
pressure range.
9 - Pressure Retention Valve
Ensures that pressure remains constant in the return
fl ow to the injectors. This reduces or eliminates
fl uctuations in pressure, allowing for precise control
of the injectors.
S488_220
10 - Cylinders 1,2, 3 and 4 Fuel Injectors N30, N31,
N32, N33
Inject fuel into the combustion chambers.
Engines
19