When the cylinders are deactivated on a displacement on demand system, _____.
A)half of the cylinders continue to fire normally
B)oil pressure to the hydraulic lifters is increased, pumping up the lifters
C)the intake and exhaust valves of the deactivated cylinders are held open
D)the injectors continue to fire, but no fuel flows into the combustion chamber

Question

Quizplus · Accepted Answer

When the cylinders are deactivated on a displacement on demand system, half of the cylinders continue to fire normally, allowing the engine to save fuel during light load conditions by effectively reducing its size.

When the Cylinders Are Deactivated on a Displacement on Demand