Fuel Pressure Regulator Solenoid

Remove vacuum lines and electrical connector from solenoid. Remove solenoid from vehicle. Apply battery voltage and ground to solenoid. Use wiring diagram in WIRING DIAGRAMS - CEC article to ensure correct polarity. Blow into middle vacuum port of solenoid. Top vacuum port on some solenoids may be a simple filtered bleed, rather than a vacuum nipple. As battery voltage is applied and removed from solenoid, air should alternately pass out of remaining 2 ports. Solenoid resistance value is 30-40 ohms.