Air Injection Check Valve: Testing and Inspection

PULSED SECONDARY AIR INJECTION VALVE - INSPECTION
1. Remove the pulsed secondary air injection valve.
2. Blow air at (A) and (B) side of the pulsed secondary air injection valve to check ventilation.

Air Intake Direction / Ventilation
- (A) -> (B) Ventilation
- (B) -> (A) No Ventilation