DL94 - Wiggle Test EEC-IV Vehicle Harness

- Still in Engine Running Continuous Monitor test mode.

- Observe Analog Volt/Ohm Meter (VOM) or STAR LED for a fault indication while performing the following.

- Grasp the vehicle harness closest to the Pressure Feedback EGR (PFE) / Differential Pressure Feedback EGR (DPFE) sensor connector. Wiggle, shake or bend a small section of the EEC-IV system vehicle harness while working your way to the dash panel Also wiggle, shake or bend the EEC-IV vehicle harness from the dash panel to the Powertrain Control Module (PCM).

- Is a fault indicated?

Yes -- Isolate fault and service as necessary. Clear continuous memory. Clearing Diagnostic Trouble Codes

Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

No -- Go to DL95. DL95 - Check PCM Connector