Question

technician a says that secondary air injection is only used on vehicles equipped with a three - way catalytic converter. technician b says that secondary air injection systems may not be needed due to efficient engine designs and reduced emissions. who is correct? a. technician a b. technician b c. both technician a and technician b d. neither technician a nor technician b

Explanation:

Secondary air injection is not exclusive to three - way catalytic converters (so Technician A is wrong). With efficient engine designs and reduced emissions, secondary air injection systems may be unnecessary (so Technician B is correct).

Answer:

b. Technician B