Pinpoint Test He: Exhaust Gas RECIRCULATION (EGR) Systems: Introduction

This pinpoint test is intended to diagnose the following:

• differential pressure feedback exhaust gas recirculation (EGR) sensor (9J460)
• EGR valve (9D460) (9D475)
• EGR vacuum regulator solenoid (9J459)
• orifice tube assembly (9D477)
• differential pressure feedback EGR sensor pressure hoses
• vacuum lines
• harness circuits: VREF, DPFE, SIGRTN, EVR, VPWR, VREF and PWRGND
• powertrain control module (PCM) (12A650)

Fig 1: Differential Pressure Feedback EGR Sensor Connector

Courtesy of FORD MOTOR CO.

Fig 2: EGR Vacuum Regulator Solenoid Connector

Courtesy of FORD MOTOR CO.

For PCM connector views or reference values, refer to REFERENCE VALUES .