Purge Control System Inspection

If simulation function of M-MDS is used: 

1. Start the engine.
2. Remove the seal cover. (Refer to SEAL COVER REMOVAL/INSTALLATION [SKYACTIV-G 2.0] in service information.)
3. Disconnect the evaporative hose between the purge solenoid valve and the charcoal canister.
4. 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 1AW)
     • Purge solenoid valve (stuck open) (Refer to PURGE SOLENOID VALVE INSPECTION [SKYACTIV-G 2.0] in service information.)
5. Connect the M-MDS to the DLC-2 and verify that DTC P0443:00 is displayed. (See DTC INSPECTION .)
   • Perform the DTC inspection. (See P0443:00 [PCM (SKYACTIV-G)] .)
6. Select the [PRG_DUTY] simulation item. (See SIMULATION INSPECTION .)
7. 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 loose or damaged evaporative hoses. (Intake manifold-Purge solenoid valve-Charcoal canister)
   • If the operation sound is not heard, perform the purge solenoid valve inspection. (Refer to PURGE SOLENOID VALVE INSPECTION [SKYACTIV-G 2.0] in service information.)
8. Warm up the engine to normal operating temperature.
9. Monitor the [PRG_DUTY] PID using the M-MDS, and drive the vehicle approx. 2, 000 rpm for 30 s or more. (See PID/DATA MONITOR INSPECTION .)
   • If the [PRG_DUTY] PID is 0 %, inspect the following PIDs:
     • MAF], [APP1], [APP2], [TP_RELAT] and [LOAD] PIDs (Refer to PCM INSPECTION [SKYACTIV-G 2.0] in service information.)

If simulation function of M-MDS is not used: 

1. Start the engine.
2. Remove the seal cover. (Refer to SEAL COVER REMOVAL/INSTALLATION [SKYACTIV-G 2.0] in service information.)
3. Disconnect the evaporative hose between the purge solenoid valve and the charcoal canister.
4. 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 1AW)
     • Purge solenoid valve (Refer to PURGE SOLENOID VALVE INSPECTION [SKYACTIV-G 2.0] in service information.)
5. Set the vehicle on a 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 contact or be caught up in any of the rotating parts.
6. Drive the vehicle at an engine speed to approx. 2000 rpm for 30 s or more.
7. Put a finger to the purge solenoid valve and verify that there is no vacuum applied during Step 3.
   • If there is no vacuum, inspect the following:
     • Wiring harness and connector (Main relay-Purge solenoid valve-PCM terminal 1AW)
     • Purge solenoid valve (Refer to PURGE SOLENOID VALVE INSPECTION [SKYACTIV-G 2.0] in service information.)
   • If there is vacuum, inspect the following:
     • Evaporative hose (Purge solenoid valve-Charcoal canister)