Hyundai Ioniq (AE): Electric EGR Control Valve / Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Engine Control/Fuel System / Engine Control System / Electric EGR Control Valve / Repair procedures

Inspection
[Motor]
1.
Turn the ignition switch OFF.
2.
Disconnect the EEGR valve connector.
3.
Check that the EEGR valve is stuck by foreign material.
4.
Measure resistance between motor 1 and 3 control terminals of the motor.
5.
Check that the resistance is within the specification.
▷ Specification
Item
Specification
Coil Resistance (Ω)
2.37 - 2.7

[Feedback Position Sensor]
1.
Connect the GDS to the data link connector.
2.
Perform the fully open and the fully closing operation of the EEGR valve by using the actuation test.
3.
Check that the voltage is within the specification
▷ Specification
Item
Specification
Opened Voltage (V)
0.7 - 1.3
Closed Voltage (V)
3.9 - 4.5

Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Remove the air cleaner assembly
(Refer to Engine Mechanical System - "Air Cleaner")
3.
Disconnect the EEGR control valve connector (A).

4.
Remove the EGR cooler pipe.
(Refer to Engine Mechanical System - "EGR Cooler")
5.
Remove the EEGR control valve (B) after removing the mounting bolt and nut (A).

Installation
   
•
After replacing the Electric EGR control valve, MUST perform the "Component Change Routine" procedure. Otherwise trouble related with engine performance or emission control may occur until ECM learning about the component is over.
1.
Turn the ignition switch OFF.
2.
Connect the GDS to Data Link Connector (DLC).
3.
Turn ignition switch ON.
4.
Select "Vehicle, Model year, Engine, System".
5.
Select "Vehicle S/W Management".
6.
Select "Component Change Routine".
7.
Select "EGR Valve Change".
8.
Perform the procedure in accordance with the message

    Circuit Diagram

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