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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 150 (Engine Control System Diagnosis - 2.0L (2 Of 3)) >> DTC P0442-00: Evaporative Emission System - Leak Detected (Small Leak) >> Component Inspection >> TWC Inspection

TWC Inspection

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
  1. Visually/physically inspect the three-way catalyst (TWC) converter for the following damage:
    • Severe discoloration caused by excessive temperature
    • Dents and holes
    • Internal rattle caused by a damaged catalyst
  2. Also, ensure that the TWC is a proper original equipment manufacturer part.
  3. Was a problem found?

    YES 

    NO 

    • Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure
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