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Home >> Ford >> 1994 >> Taurus V6-232 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> DL - PFE/DPFE Sensor; EVR Solenoid Testing >> DL35 - Attempt to Generate KOEO Code 337
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DL35 - Attempt to Generate KOEO Code 337



- Key "OFF".

- Disconnect Pressure Feedback EGR (PFE) / Differential Pressure Feedback EGR (DPFE) sensor.

- Jumper VREF circuit to PFE/DPFE circuit at the PFE/DPFE sensor vehicle harness connector.

- Perform Key On Engine Off (KOEO) Self-Test. Quick Test Appendix (Detailed Testing Instructions)

NOTE: If no Diagnostic Trouble Codes (DTC) are generated, immediately remove jumper and go directly to DL37. DL37 - Check PFE/DPFE Harness Circuit Continuity

- Is DTC 337 present (ignore all other DTCs)?

Yes -- Replace PFE/DPFE sensor. Remove jumper wire. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

No -- Remove jumper. Go to DL36. DL36 - Measure VREF Circuit Voltage
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