Kia Picanto: Exhaust Emission Control System / GPF (Gasoline Particulate Filter)

Kia Picanto JA 2017-2022 Service & Repair Manual / Emission Control System / Exhaust Emission Control System / GPF (Gasoline Particulate Filter)

Description and operation
Description
The Gasoline Particulate Filter (GPF) system prevents Particulate Matter (PM) from being discharged to the atmosphere and consists of a filter assembly, two Exhaust Gas Temperature Sensors (EGTS).The filter is integrated in the catalytic converter assembly and has honeycomb cell structure which can filter the PM in the exhaust gas. While the exhaust gas passes the GPF, This gathered PM in GPF is called "soot".

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 KDS 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 & Installation
1.
Turn ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Remove the exhaust gas temperature sensor (EGTS) #1, #2.
(Refer to Engine Control / Fuel System - "Exhaust Gas Temperature Sensor (EGTS)")
3.
Remove the GPF (C) after removing the installation nuts.
GPF installation nut :
39.2 - 58.8 N·m (4.0 - 6.0 kgf·m, 28.9 - 43.4 lb·ft)

4.
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 KDS 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".

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