DL108 - Inspect EVR Solenoid

- Key "OFF".

- Disconnect Powertrain Control Module (PCM) connector. Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.

- Install breakout box and connect PCM to breakout box.

- Disconnect vacuum hose at EGR valve and connect hose to a vacuum gauge.

- Run engine to operating temperature and stabilized idle.

- Jumper test pin 40 to test pin 33 at the breakout box which should turn ON the EVR solenoid.

- While reading the vacuum gauge, tap the EGR Vacuum Regulator (EVR) solenoid, wiggle the solenoid connector and solenoid vehicle harness. Look for a sudden drop in vacuum reading as each action is performed.

- Is there a fault indicated?

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

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

No -- Unable to duplicate and/or identify fault at this time. For further diagnosis using the EEC-IV monitor box or Scan Tool, refer to Normal Scan Data Values. All others Clear continuous memory. Clearing Diagnostic Trouble Codes

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