Pressure Feedback (PFE) EGR Sensor & Diff PFE (DPFE) Sensor

Faults in sensor or circuit should set a diagnostic trouble code. See QUICK TEST in TESTS W/CODES - EEC-IV (2.0L) article in the ENGINE PERFORMANCE section. If diagnostic trouble code has not been set, see CIRCUIT TEST DL in TESTS W/CODES - EEC-IV (2.0L) article in the ENGINE PERFORMANCE section for testing.