In most engines, at what vehicle speed do the VGT (variable-geometry turbocharger) vanes close to provide the engine with a natural retarding force that more closely resembles a gasoline-fueled engine with a throttle plate?
A)10-20 mph"
B)3-6 mph"
C)5-10 mph
D)6-8 mph"

Question

Quizplus · Accepted Answer

The VGT vanes typically close at lower speeds, around 3-6 mph, to provide engine braking similar to a gasoline engine with a throttle plate.

In Most Engines, at What Vehicle Speed Do the VGT