Purge Control System Inspection

Start the engine.
Disconnect the vacuum hose between the purge solenoid valve and the charcoal canister.
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 terminal B-PCM terminal 2S)
  - Purge solenoid valve (stuck open) (See PURGE SOLENOID VALVE INSPECTION .)
Warm up the engine to the normal operating temperature.
Stop the engine.
Connect the M-MDS to the DLC-2 and verify that the DTC P0443:00 is shown. Perform the DTC inspection. (See DTC P0443:00 .)
Switch the ignition to ON.
Access the ECT1 PID. (See ON-BOARD DIAGNOSTIC TEST .)
Verify that the engine coolant temperature is more than 60 °C {140 °F} .
- If the M-MDS indicates less than 60 °C {140 °F} , perform the ECT sensor No. 1 inspection. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION .)
Put a finger to the purge solenoid valve and verify that there is vacuum applied with engine at idle and warmed up.
- If there is no vacuum, inspect the following:
  - Wiring harness and connectors (Main relay-Purge solenoid valve terminal B-PCM terminal 2S)
  - Purge solenoid valve (stuck close) (See PURGE SOLENOID VALVE INSPECTION .)
  - MAF, APP1, APP2, TP REL and LOAD PIDs (See PCM INSPECTION .)
- If there is a vacuum, inspect the following:
  - Wiring harness and connectors (Purge solenoid valve terminal B-PCM terminal 2S)
  - Vacuum hose (Purge solenoid valve-Charcoal canister)