Technician A says the air control valve (or air-switching valve) is a vacuum-operated valve that routes the air from the pump either to the exhaust manifold or to the catalytic converter. Technician B says the air bypass (AIRB) valve (or diverter (AIRD) valve) located between the air pump and the air control valve diverts the air pump output to the atmosphere or air filter during deceleration. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B
Correct Answer:
Verified
Q21: While discussing EGR systems with a differential
Q22: The first controlled automotive emission was _.
A)crankcase
Q23: Technician A says the OBD-II EVAP system
Q24: Technician A says the EVAP monitor for
Q25: What gas has a rotten egg smell
Q27: The exhaust gas recirculation system reduces _.
A)hydrocarbons
B)carbon
Q28: Technician A says the production of CO2
Q29: Which of the following is NOT part
Q30: Technician A says the EGR vent solenoid
Q31: OBD-II canister purge systems are being discussed.
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