Hyundai Tucson: GPF Regeneration

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Emission Control Syste /  Exhaust Emission Control System / 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 70ºC
  • 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 diagnostic tool 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".

GPF Regeneration - Removal


     GPF Regeneration - Removal

    Removal Turn the ignition switch OFF and disconnect the battery negative (-) cable. Lift up the vehicle. Remove the floor under cover front RH. Disconnect the Exhaust Gas Temperature Sensor (EGTS) Front (A) and Rear (B). Rem

     GPF Regeneration- Description

    Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load. By controlling CVVT, th

     Schematic Diagrams

    Manifold Absolute Pressure Sensor (MAPS) Intake Air Temperature Sensor (IATS) ETC (Electronic Throttle Conlrol) System Engine Coolant Temperature Sensor (ECTS) Crankshaft Position Sensor (CKPS) Camshaft Position Sensor (C


     When not using the CVVD fixture

    (3) Remove the CVVD assembly. Remove the Intake CVVT (A). Installation Install the Intake CVVT (A). Install the CVVD assembly (A). WARNING After installing the CVVD, check whether the swing arm is separated

     Blower unit assembly

    Components Location Blower unit assembly Components Blower unit assembly Intake actuator Intake duct case LH Intake seal Intake door(l) Intake door(2) Intake duct case RH Climate control actuator PWM blower module B