Technician a Says If the EVAP System Is Purging Vapors

Technician A says if the EVAP system is purging vapors from the charcoal canister while the engine is idling, rough engine operation will occur. Technician B says the system should not have more than 0.5 liter of flow during the 240 seconds of an I/M 240 test. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Correct Answer:

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