HE: Exhaust Gas Recirculation (EGR) Systems Introduction

HE: Pinpoint Tests

Note

This Pinpoint Test is intended to diagnose the following:

• Differential pressure feedback EGR sensor (9J460)
• Exhaust gas recirculation (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, SIG, SIG RTN, EVR, EVR PWR
• Powertrain control module (PCM) (12A650)

Pinpoint Test Schematics and Connectors

LS6/LS8

All Others

HE: Pinpoint Tests