Sprinter 3500 L5-2.7L DSL Turbo (2004)
Fuel Rail: Description and Operation
The fuel rail acts like a high pressure store.It is available to all injectors for drawing fuel which has been compressed by the high pressure injection pump
The rail pressure sensor, rail pressure control valve, high pressure line, and the return flow line are attached to the fuel rail
The stored fuel volume inside the rail acts as a damper for pressure fluctuations which result because of pulsating supply and brief large extractions of
fuel during injector firing The rail primarily influences the atomization of fuel at the injector nozzle, and the accuracy of injected quantity during
injection
