Results of Incorrect Operation

If no air, oxygen, flow enters the exhaust stream at the exhaust ports. The HC and CO emission levels are too high.

Air flowing to the exhaust ports at all times could increase temperature of the 3-way catalytic converter.

The diagnostic trouble codes P0410, P0418, P1415, and P1416 set if there is a malfunction in the following components:
^ The AIR pump
^ The AIR solenoid
^ The AIR pump solenoid relay
^ The hoses or pipes are leaking
^ The check valves are leaking
^ The circuits going to the AIR pump and the AIR pump solenoid relay