Intake Air Plenum: Description and Operation

The induction elbow provides the interface between the electronic throttle and the intake manifold.

There are connections on the induction elbow providing vacuum take-offs for brake servo, cruise (speed) control actuator/fuel pressure regulator and the EVAP system part-load breather. The EGR valve is also connected to the induction elbow or, if not used, a blanking plate is fitted.