F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
11. Disconnect the exhaust gas recirculation (EGR) valve vacuum hose.
12. Disconnect the throttle position (TP) sensor electrical connector and the EGR vacuum regulator solenoid electrical and vacuum connectors.
13. Disconnect the fuel pressure regulator electrical connector.
14. Disconnect the differential pressure feedback EGR system electrical connector.
