Purge Control Inspection

1. Start the engine.
2. Disconnect the vacuum hose between the purge solenoid valve and the charcoal canister.

3. Put a finger to the purge solenoid valve and verify that there is no vacuum applied when the engine is cold.
- If there is a vacuum, inspect the following:
- Wiring harness and connectors (Purge solenoid valve-PCM terminal 67)
- Purge solenoid valve

4. Warm up the engine to the normal operating temperature.
5. Stop the engine.




6. Connect the SST (NGS tester) to DLC-2.
7. Turn the ignition switch on.
8. Select the PID/DATA MONITOR AND RECORD function on the NGS display.
9. Select ECT PID.

10. Verify that the engine coolant temperature is above 60 °C (140 °F).
- If the SSTS (NGS tester) indicates below 60 °C (140 °F), carry out the ECT sensor inspection.

11. Select the SIMULATION TEST function on the NGS display.
12. Select PRGV PID.
13. Press START.

14. Increase the duty value of the purge solenoid valve to 50% and inspect if the operation sound of the valve is heard.
- If the operation sound is heard, inspect for the loose or damaged vacuum hose. (Intake manifold-purge solenoid valve -charcoal canister)
- If the operation sound is not heard, carry out the purge solenoid valve inspection.