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.
- Inspect wiring harness between purge solenoid valve and PCM terminal.
- Inspect purge solenoid valve.

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




6. Connect the SSTs (NGS tester) to DLC-2.
7. Turn the ignition switch to ON.
8. Select PID/DATA MONITOR AND RECORD and press TRIGGER.
9. Select ECT and press TRIGGER, then verify that the ECT is above 60 °C {140 °F}.

10. Press START.
- If the NGS tester indicates below 60 °C {140 °F}, inspect the ECT sensor.

11. Select SIMULATION TEST and press TRIGGER.
12. Select PRG V and press TRIGGER.
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 the loose or damaged vacuum hose. (Intake manifold-purge solenoid valve-charcoal canister)
- If the operation sound is not heard, inspect the purge solenoid valve.