Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
Vehicle » Powertrain Management » Emission Control Systems » Air Diverter Solenoid » Description and Operation  
  Description and Operation  


Secondary Air Injection Bypass Solenoid

The secondary air injection bypass (AIR bypass) solenoid (Figure 122) is used by the PCM to control vacuum to the secondary air injection diverter (AIR diverter) valve. The AIR bypass solenoid is a normally closed solenoid. The AIR bypass solenoid also has a filtered vent feature to permit vacuum release.