WASTEGATE VALVE POSITION SENSOR INSPECTION [SKYACTIV-G 2.5T]

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Note
•  The wastegate valve position sensor is integrated in the wastegate valve actuator.
•  The wastegate valve actuator cannot be removed as a single unit. When replacing the wastegate valve actuator, replace it together with the dynamic pressure turbo as a single unit.

Function Inspection

1.  Connect the M-MDS to the DLC-2.

2.  Switch the ignition ON (engine off).

3.  Display the PIDs WGV_ACT and WGP. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)].) (See PCM INSPECTION [SKYACTIV-G 2.5T].)

4.  Compare the voltage and opening angle indications for the PIDs WGV_ACT and WGP with the standard in the table indicated below.

•  If they do not match the standard, perform the voltage inspection. (See Voltage inspection.)

Standard

WGV_ACT

WGP

Remarks

V

%
Approx. 4.2
Approx. 100
Ignition switched ON (engine off)
Approx. 4.06
Approx. 95
Idle (after warm up)
Approx. 1.48
Approx. 0
Racing (Engine speed: 2,000 rpm)


Voltage inspection

1.  Switch the ignition ON (engine off).

2.  Measure the voltage at the wastegate valve actuator terminal E.

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•  If the voltage is within the specification, go to the next step.
•  If the voltage is not within the specification, replace the dynamic pressure turbo. (See DYNAMIC PRESSURE TURBO REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
Specification (Reference)
Approx. 1.82 V

3.  Connect the M-MDS to the DLC-2.

4.  Start the engine.

5.  Access the PID/DATA monitor item WGP and simulation item WGV using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)].)

6.  Verify that the WGP monitor value conforms to the WGV monitor value when the simulation item WGV is set from 0 % to 100 %.

•  If the voltage does not increase, replace the dynamic pressure turbo. (See DYNAMIC PRESSURE TURBO REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)

Specification (Reference)

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