Fuel Rail: Description and Operation

Fuel Injection Supply Manifold (Fuel Rail) Assembly:

PURPOSE
- The fuel supply manifold delivers high-pressure fuel from the vehicle fuel supply line to the fuel injectors.

CONSTRUCTION
- The assembly consists of a preformed tube, six injector connectors, a mounting flange for the fuel pressure regulator and mounting attachments to provide fuel injector retention.

- The manifold is also equipped with a fuel pressure relief valve for diagnostic testing or field service fuel system pressure bleed down.