Technician A says that the when a HADI is operated in non-amplification mode, the resulting injection pressure should be roughly equivalent to the ACRS rail pressure. Technician B says that when the HADI is operated in amplification mode, ACRS injection pressure can more than double the rail pressure. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B.

Question

Quizplus · Accepted Answer

Both technicians are correct. Technician A is correct in stating that in non-amplification mode, the HADI (Hydraulically Actuated Electronically Controlled Unit Injector) injection pressure is roughly equivalent to the ACRS (Advanced Common Rail System) rail pressure. Technician B is correct in stating that in amplification mode, the HADI can more than double the ACRS injection pressure.

Technician a Says That the When a HADI Is Operated