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Technician A says that the evap monitor is able to find evap system leaks. Technician B says that the evap monitor is able to differentiate between a large evap system leak and a small one. Who is correct?

A. A only
B. B only
C. Both A and B
D. Neither A nor B

Answer :

Both Technician A and Technician B are correct: the EVAP monitor can detect evaporative system leaks and differentiate between large and small leaks, setting the appropriate DTCs. Therefore, option c. both a and b is the correct answer.

The subject of the question concerns the EVAP (Evaporative Emission Control System) monitor, which is part of a vehicle's emissions system. Specifically, the question is regarding the monitor's capabilities in detecting evaporative system leaks and differentiating between the sizes of those leaks.