The position of the VGT (variable-geometry turbochargers) vanes can be varied to produce the desired boost pressure. At idle and during shutdown, the vanes are ----_____ closed?
A)70-75%"
B)80-85%"
C)90-95%
D)95-100%"

Question

Quizplus · Accepted Answer

At idle and during shutdown, the VGT vanes are typically 90-95% closed to minimize exhaust flow and reduce boost pressure, ensuring efficient engine operation and protection.

The Position of the VGT (Variable-Geometry Turbochargers) Vanes Can Be