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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 42 (Engine Control System Diagnosis - 2.0L (2 Of 3) (Except HEV)) >> DTC P03B9: Cylinder 4 Pressure Too High >> DTC Inspection >> Monitor DTCs

Monitor DTCs

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  1. Monitor DTCs related to Knock sensor, injector, ignition coil or fuel trim with GDS.
  2. Are there the DTCs above-mentioned?

    YES 

    • Do all repairs associated with those DTCs before proceeding with this procedure.

    NO