Hyundai Ioniq: Exhaust Emission Control System / GPF (Gasoline Particulate Filter). Repair procedures

Hyundai Ioniq (AE) 2017-2023 Service Manual / Engine Electrical System / Exhaust Emission Control System / GPF (Gasoline Particulate Filter). Repair procedures

GPF Regeneration

This procedures is to forcibly regenerate the GPF with scan tool when the GPF doesn't have been regenerated during driving. For example, if the vehicle has repeated "Low speed driving" or "Short distance driving", the GPF regeneration procedure cannot be proceeded because "Regeneration Mode" doesn't made.

•	If performing the GPF service regeneration mode indoors, fire or burn injuries may occur by high-temperature exhaust gas. Therefore the GPF service regeneration mode must be performed in a outdoor safe zone.

Forcibly Regeneration Condition

–	Engine coolant temperature : about 70°C

–	Engine at idle

–	P-range (A/T) or Neutral (M/T)

–	Normal battery voltage

–	Electrical fully load ON (A/C ON if equipped, Blower ON with maximum speed, Head Lamp ON, Wiper ON, Other Lamps ON, etc.).

1.	Turn ignition switch OFF.

2.	Connect a GDS to Data Link Connector (DLC).

3.	Turn ignition switch ON.

4.	Select "Vehicle, Model year, Engine, System".

5.	Start engine at idle and P-range (A/T) or neutral (M/T).

6.	Apply electrical fully load to the vehicle (A/C ON, Blower ON with maximum speed, Head Lamp ON, Wiper ON, and Other Lamps ON, etc.).

7.	Select "Vehicle S/W Management".

8.	Select "GPF Service Regeneration".

Removal

1.	Turn ignition switch OFF and disconnect the battery negative (-) terminal.

2.	Lift the vehicle.

3.	Remove the exhaust gas temperature sensor (EGTS) #1, #2. (Refer to Engine Control / Fuel System - "Exhaust Gas Temperature Sensor (EGTS)")

4.	Remove the GPF (B) after removing the installation nuts (A).

Installation

Install in the reverse order of removal.

•	When installing, replace with new gaskets.

Replacement

•	After replacing the GPF assembly, MUST perform the "Component Change Routine" procedure.

1.	Turn ignition switch OFF.

2.	Connect a GDS to Data Link Connector (DLC).

3.	Turn ignition switch ON.

4.	Select "Vehicle, Model year, Engine, System".

5.	Start engine at idle and P-range (A/T) or neutral (M/T).

6.	Apply electrical fully load to the vehicle (A/C ON, Blower ON with maximum speed, Head Lamp ON, Wiper ON, and Other Lamps ON, etc.).

7.	Select "Vehicle S/W Management".

8.	Select "Resetting Adaptive Values after GPF replacement".

GPF (Gasoline Particulate Filter). Schematic diagrams

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Engine Control/Fuel System

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