Kia Niro: Engine Control System / Electric EGR Control Valve Repair procedures

Kia Niro 2017 (DE HEV) Service Manual / Engine Control/Fuel System / Engine Control System / Electric EGR Control Valve Repair procedures

Inspection

[Motor]

1.	Switch "OFF" the ignition.

2.	Disconnect the EEGR valve connector.

3.	Check if the EEGR valve is stuck by foreign material.

4.	Measure the resistance between 1 and 3 control terminals of the motor.

Check that the resistance is within the specification.

Specification : 2.21 - 2.99 Ω [20°C (68 °F)]

[Feedback Position Sensor]

1.	Connect the KDS/GDS to the data link connector.

2.	Fully open and fully close the EEGR valve by conducting the actuation test.

Check that the voltage is within the specification

Item	Specification
Sensor Power (V)	5
Pin	3
Closed Voltage (V)	3.85 - 4.15
Open Voltage (V)	0.75 - 1.25

Removal

1.	Switch "OFF" the ignition and disconnect the negative (-) battery terminal.

2.	EGR cooler pipe. (Refer to Engine Mechanical System - "EGR Cooler")

3.	Remove the EEGR valve (B) after loosening the mounting bolts and nuts (A).

Installation

•	Install the component to the specified torque.

•	Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.

•	Apply engine oil to the valve O-ring.

1.	Install in the reverse order of removal.

Electric EGR Control Valve Schematic diagrams

Circuit Diagram Harness Connector ...

Electric EGR Control Valve Troubleshooting

Signal Waveform Fig.1) Duty control [EEGR Motor (-)] during deceleration or idle Fig.2) Duty control [EEGR Motor (+)] during acceleration ...

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