Purge Control Inspection

1. Start the engine.
2. Disconnect the vacuum hose between the purge solenoid valve and the catch tank.
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 18)
- Purge solenoid valve

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




6. Connect the SSTs (NGS tester) to the DLC-2.
7. Turn the ignition key to ON (Engine OFF).
8. Select the PID/DATA MONITOR AND RECORD function on the NGS display.
9. Select ECT PID.
10. Verify that the ECT is above 60 °C {140 °F}.
- If the SSTs (NGS tester) indicates below 60 °C {140 °F}, inspect the ECT sensor.

11. Select the SIMULATION JEST 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 it 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-catch tank-charcoal canister)
- If the operation sound is not heard, inspect the purge solenoid valve.