Technician A says that the IQCC for each DD-Series HADI must be reprogrammed to the MCM every time an injector is changed out. Technician B says that failure to reprogram a HADI IQCC on change-out can result in unbalanced engine fueling. 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

The IQCC (Injector Quantity Calibration Code) must be reprogrammed to the MCM (Motor Control Module) every time an injector is changed to ensure accurate fuel delivery. Failure to do so can indeed result in unbalanced engine fueling, as each injector may have slightly different flow characteristics.

Technician a Says That the IQCC for Each DD-Series HADI