All of the following statements about the air injection system are true EXCEPT:
A) a diverter valve, or a similar type of device, prevents a backfire during deceleration.
B) a one-way check valve prevents exhaust from backing up into the hoses and pump.
C) a high-pressure vane-type pump driven by a crankshaft belt provides air.
D) computer-controlled three-way catalyst systems include an air switching valve that moves the injected air into the exhaust manifold or into part of the catalytic converter.

Question

Quizplus · Accepted Answer

The air injection system typically uses an electric pump rather than a high-pressure vane-type pump driven by a crankshaft belt to provide air. This system is designed to reduce emissions by injecting air into the exhaust stream, helping to fully combust unburned hydrocarbons and carbon monoxide.

All of the Following Statements About the Air Injection System