Grand Prix V6-204 3.4L DOHC VIN X SFI (1995)
Fuel Rail: Description and Operation
Fuel Rail Assembly
The fuel rail assembly is mounted to the engine intake manifold and performs several functions; it positions the injectors in the intake manifold,
distributes fuel evenly to the injectors and integrates the fuel pressure regulator into the fuel metering system. An expansion chamber is attached to the
fuel rail inlet pipe. The expansion chamber dampens pulsations generated by the injectors cycling.