OBD-II Canister Purge Systems Are Being Discussed

OBD-II canister purge systems are being discussed. Technician A says the canister purge solenoid valve is only open and controlled when the system is in open loop. Technician B says because the system responds to current engine and operating conditions, the purging of the vapors does not affect drivability. 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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