ENGINE CONTROL SYSTEM OPERATION INSPECTION [WL-C, WE-C]

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Guide Blade Actuator Operation Inspection

1.  Connect M-MDS to DLC-2.

2.  Start the engine and run it at idle.

3.  Access the VBCV PID.

4.  Verify that the guide blade actuator rod moves when the VBCV PID from 0 to 100 % using simulation function.

•  If the rod movement cannot be verified inspect the followings;

―  Guide blade actuator (See GUIDE BLADE ACTUATOR INSPECTION [WL-C, WE-C].)

―  Vacuum hose connection between the vacuum chamber and the guide blade actuator through the VBC solenoid valve (See INTAKE-AIR SYSTEM VACUUM HOSE ROUTING DIAGRAM [WL-C, WE-C].)

―  VBC solenoid valve (See VARIABLE BOOST CONTROL (VBC) SOLENOID VALVE INSPECTION [WL-C, WE-C].)

Glow Plug Control Operation Inspection

1.  Verify that the battery is charged fully.

2.  If not, charge the battery.

3.  Connect the M-MDS to the DLC.

4.  Turn the engine switch to the ON position (Engine off).

5.  Access and monitor the VPWR and GPL PIDs.

6.  Verify that the VPWR PID drops 0.3 V or more while the GPL is turned on from off using the simulation function.

•  If it cannot be verified, inspect the followings;

―  Glow plug relay

―  Glow plug

―  Wiring harness for battery positive post—glow plug relay—glow plug

―  Wiring harness for PCM terminal 182—glow plug relay—ground

Intake Shutter Valve Operation Inspection

1.  Connect the M-MDS to the DLC-2.

2.  Start the engine and run it at idle.

3.  Access the IASV and IASV2 PID.

4.  Verify that the Intake Shutter Valve actuator rod moves to half open when the IASV PID from OFF to ON and, full open when the IASV2 PID from OFF to ON using simulation function.

•  If the rod movement cannot be verified inspect the followings;

―  Intake Shutter Valve actuator

―  Vacuum hose connection between the vacuum chamber and the Intake Shutter Valve actuator through the ISV solenoid valve

―  ISV solenoid valve and related harness

Fuel Injector Operation Inspection

1.  Connect the M-MDS to the DLC-2.

2.  Start the engine and warm it up to normal operating temperature.

3.  Perform the KOER self-test. (See KOEO/KOER SELF TEST [WL-C, WE-C].)

4.  Verify that DTCs P0200, P0201, P0202, P0203 and/or P0204 are not shown using the KOER self-test.

•  If DTC P0200, P0201, P0202, P0203 and/or P0204 are shown, perform the DTC troubleshooting procedure. (See DTC TABLE [WL-C, WE-C].)

5.  Verify that the engine speed drops or stalls when each cylinder fuel injector turns to off from on using the simulation function.

•  If it cannot be verified, inspect the following for the suspected cylinder;

―  Fuel injector (See FUEL INJECTOR INSPECTION [WL-C, WE-C].)

―  Wiring harness for PCM—fuel injector

Variable Swirl Control Valve (VSC) Operation Inspection

1.  Connect the M-MDS to the DLC-2.

2.  Start the engine and run it at idle.

3.  Access the SCV PID

4.  Verify that the VSC valve actuator rod moves to close when the SCV PID goes from OFF to ON using simulation function.

•  If the rod movement cannot be verified inspect the followings;

―  VSC valve actuator

―  Vacuum hose connection between the vacuum chamber and the VSC valve actuator through the VSC valve solenoid valve

―  VSC valve solenoid valve and related harness