22. Connect the idle air control (IAC) valve electrical connector.
23. Connect the vacuum hose to the EGR valve.
24. Connect the hose to the PCV valve.
25. Connect the PCV hose to the base of the throttle body assembly.
26. Connect the EGR tube to the EGR valve.
27. Install the EGR vacuum regulator solenoid bracket.
2002 Mustang Workshop Manual
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS2B/~MUS~LEN/19/S