SECONDARY AIR INJECTION (AIR) PUMP CONSTRUCTION/OPERATION


BHE011613811T02

1
Motor
2
To AIR control valve
3
From atmosphere
4
Secondary air flow

• Mainly consists of a DC motor and fan.

• When the AIR pump relay is turned on due to a PCM signal, the motor drives the pump fan to discharge secondary air.

1
AIR pump relay
2
AIR pump
3
PCM