Pinpoint Test HE: Exhaust Gas Recirculation (EGR) Systems: Introduction: Notes

This pinpoint test is intended to diagnose the following:

• Differential pressure feedback EGR (DPFE) sensor (9J460).
• Exhaust gas recirculation (EGR) valve (9D460) (9D475).
• EGR vacuum regulator (EVR) solenoid (9J459).
• Orifice tube assembly (9D477).
• Differential pressure feedback EGR (DPFE) sensor pressure hoses.
• Vacuum lines.
• Harness circuits: VREF, DPFE, SIGRTN, EVR, VPWR.
• Powertrain control module (PCM) (12A650).
  Fig 1: Typical DPFE EGR System

  Courtesy of FORD MOTOR CO.
  Fig 2: Differential Pressure Feedback EGR (DPFEGR) Sensor Connector

  Courtesy of FORD MOTOR CO.

Fig 3: Electronic Vacuum Regulator (EVR) Solenoid Connector

Courtesy of FORD MOTOR CO.