Technician A says that anytime the tailpipe NOx sensor reads more than a few parts per million of NOx, DTCs will switch the MIL on. Technician B says that model predictive control (MPC) will always make adjustments to the engine to correct the fault. Who is correct?
A)Technician A
B)Technician B
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is incorrect because the MIL (Malfunction Indicator Lamp) is not triggered by just a few parts per million of NOx; it requires a significant fault. Technician B is incorrect because model predictive control (MPC) does not always make adjustments to correct faults; it predicts and optimizes performance but may not address all faults directly.

Technician a Says That Anytime the Tailpipe NOx Sensor Reads