6 V6-3.0L DOHC (2003)
Canister Purge Solenoid: Testing and Inspection
Purge Control System Inspection
Purge Control System 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.
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If there is a vacuum, inspect the following:
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Wiring harness and connectors (Purge solenoid valve - PCM terminal 18)
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Purge solenoid valve
4. Warm-up the engine to the normal operating temperature.
5. Stop the engine.
6. Connect the WDS or equivalent to the DLC-2 and verify that the DTC P0443 is displayed. Perform DTC inspection. (See DTC TABLE. See:
Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Descriptions)
7. Turn ignition switch to ON position.
8. Select ECT PID.
9. Verify that the engine coolant temperature is 60°C {140°F} or above.
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If WDS or equivalent indicates less than 60°C {140°F}, perform the ECT sensor inspection.
10. Set the vehicle on the dynamometer or chassis roller.
WARNING: When the dynamometer or chassis roller is operating, there is a possibility that the operator may come into contact with or
be caught up in the rotating parts, leading to serious injuries or death. When performing work while the dynamometer or chassis roller is
operating, be careful not to come into contact with or be caught up in any of the rotating parts.
11. Drive vehicle with engine speed at approx. 2,000 rpm for more than 30 s.
12. Put a finger to the purge solenoid valve and verify that there is no vacuum applied.
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If there is no vacuum, inspect the following:
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Wiring harness and connector (Main relay- purge solenoid valve-PCM terminal 18)
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Purge solenoid valve
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MAF, APP1, APP2, TP_REL and LOAD PIDs
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If there is vacuum, inspect the following:
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Vacuum hose (Purge Solenoid valve - charcoal canister)
