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Test Notes

Enter this pinpoint test only when directed here.

This pinpoint test is intended to diagnose the following:
- Differential Pressure Feedback EGR Sensor
- Exhaust Gas Recirculation (EGR) Valve
- EGR Vacuum Regulator Solenoid
- Orifice Tube Assembly
- Differential Pressure Feedback EGR Sensor Pressure Hoses
- Vacuum Lines
- Harness Circuits: VREF, DPFE, SIG, SIG RTN, EVR, EVR PWR
- Powertrain Control Module