Technician A states whenever a electrohydraulic injector is changed-out the PCM needs to be programmed with the new injectors calibration code. Technician B states that if a electrohydraulic injector is moved from on cylinder to another, PCM re-programming is not required. 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

Technician A is correct. Whenever a new electrohydraulic injector is installed, the PCM must be programmed with the new injector's calibration code. This is because each injector has its own unique characteristics that must be communicated to the PCM in order for it to accurately control fuel injection. Technician B is incorrect, as even if an injector is moved to a different cylinder, the PCM still needs to be reprogrammed to ensure proper fuel control.

Technician a States Whenever a Electrohydraulic Injector Is Changed-Out the PCM