Test Notes

NOTE: You should enter this Pinpoint Test only when directed here.

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

DESCRIPTION

Differential Pressure Feedback EGR System:

For additional information on the Exhaust Gas Recirculation (EGR) System, refer to Emission Control Systems / Exhaust Gas Recirculation / Description and Operation.