Hyundai Sonata: Engine Control System / Electric WGT Control Actuator Repair procedures
[Motor]
| 1. |
Turn ignition switch OFF. |
| 2. |
Disconnect the EWGA connector. |
| 3. |
Check that the EWGA is stuck by foreign material. |
| 4. |
Measure resistance between motor (+) and (-) control terminals of the motor. |
| 5. |
Check that the resistance is within the specification.
Specification : Refer to "Specification"
|
|
[Position Sensor]
| 1. |
Turn ignition switch OFF. |
| 2. |
Connect the GDS to the data link connector(DLC). |
| 3. |
Check the output voltage at each position of the EWGA position sensor on current data item within the specification.
Specification : Refer to "Specification"
|
|
| 1. |
Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 3. |
Disconnect the EWGA connector (A). 
|
| 4. |
Remove the exhaust manifold heat protector.
(Refer to Engine Mechanical System - "Exhaust Manifold") |
| 5. |
Remove the shaft link assembly (B) after removing the C-ring (A). 
|
| 6. |
Remove the turbo charger water pipe installation bolt (A). |
| 7. |
Remove the EWGA after removing the bolts (B). 
|
When carrying the turbo charger, do not hold the rod of the turbo charge to prevent bending the rod.
|
|
| 1. |
Install in the reverse order of removal.
Electric WGT control actuator installation :
11.8 ~ 13.7 N.m (1.2 ~ 1.4 kgf.m, 8.7 ~ 10.1 lb-ft)
|
|
| 1. |
Check that the waste gate turbo charger is cool enough to work. |
| 2. |
Turn the ignition switch to OFF position. |
| 3. |
Connect the diagnostic tool to DLC connector (16 pin) under the driver side instrument panel. |
| 4. |
Turn the ignition switch ON position.
|
| 5. |
Select VIN or Vehicle on the initial screen. |
| 6. |
Enter "Engine Control" menu after slelecting vehicle
information (Vehicle model, Model year, Engine type) or entering the VIN
number. |
| 7. |
Check " Adaption value for the lower mechancal stop of EWGA" after selecting "Current Data" menu.
Specified voltage value : 4.1 ~ 4.3 V
|
|
| 8. |
If the voltage value measured is not within the specified
voltage value, adjust the EWGA rod length. But, if no, no further
procedure is required.
| (1) |
Loosen the rod end lock nut (A) and remove the C-ring (B). |
| (2) |
Adjust the rod end part (C) by rotating it clockwise (D) or counterclockwise (E) to satisfy the specification.
| A. |
If output voltage > 4.3 V
: Turn it clockwise (D) |
| B. |
If output voltage < 4.1 V
: Turn it counterclockwise (E) |
Turning angle
| Changing level of the adaption value (V)
| 0.5 turn (180°)
| 0.15 ~ 0.20
| 1 turn (360°)
| 0.30 ~ 0.40
|
|
|
| 9. |
Install the rod end part (C) to the turbo charger lever (D) temporarily. Don't tighten the rod end lock nut (A). |
| 10. |
Turn the ignition switch ON/OFF 5 times. But hold 5 seconds at each IG ON or OFF state.
|
Turn the ignition switch ON/OFF repeatedly until the changing
value of " Adaption value for the lower mechancal stop of EWGA" is
within 0.05V.
When turning the ignition switch ON or OFF once, maximum changing level of the adaption value : Max. ± 0.05V
|
|
|
| 11. |
If the voltage value measured is not within the specified
voltage value, repeat 8~10 procedures untill the voltage value is within
the specified voltage value.
Specified voltage value : 4.1 ~ 4.3 V
|
|
| 12. |
Check that " Adaption value for the lower mechancal stop of EWGA" is within the specified voltage value. |
| 13. |
If it is within the specified voltage value, install the turbo charger lever (D) and the rod end part (C).
|
Be careful not to remove the washer (E). |
|
| 14. |
Tighten the rod end locking nut (A). The turbo charger lever
(D) side and the rod end part (C) side should be parallel at this time. |
| 15. |
Install the C-ring (B).
|
Signal Waveform
Circuit Diagram
...
Description
RCV (Recirculation Valve) Control Solenoid Valve is installed
on the cooling pan motor top and operates the RCV actuator which
controls the by-pass passage of the turbo-charger comp ...
Electric WGT Control Actuator Schematic Diagrams
RCV Control Solenoid Valve Description and Operation