Intake Elbow

Intake Elbow





The intake elbow directs the metered airflow from the throttle body to the intake manifold. Stub pipes on both sides of the intake elbow provide connections for vacuum actuators and are also used to redirect emissions into the engine.

On the right-hand side of the elbow a large diameter pipe connects to the brake servo. The smaller pipe provides a vacuum feed to the fuel rail pressure regulator and throttle cruise control system. On the left-hand side of the elbow the front pipe supplies vacuum control for the evaporative emissions system valves.

Emissions from the engine part load breather (bank 2) and purged fuel vapor from the EVAP valve are drawn via a common T piece into the left-hand side of the intake elbow. Re-circulated exhaust gas enters the intake elbow via the EGR valve which is mounted directly on the rear of the elbow: where the EGR system is not used, a blanking plate is fitted.