Does the Three-Way Catalytic Converter Affect Engine Power?

[OReese]

If the three-way catalytic converter is damaged, the ECU will detect it and subsequently limit the engine's power output. Therefore, a damaged three-way catalytic converter will indeed affect the vehicle's power. 1. Three-way catalytic converter failure: When the catalytic converter reaches the end of its lifespan and its catalytic effect weakens, it can cause your vehicle's exhaust emissions to exceed standards. 2. Three-way catalytic converter clogging: Poor fuel quality with excessive sludge and gum impurities can lead to clogging of the three-way catalytic converter. Once clogged, restricted exhaust flow can result in insufficient power, increased fuel consumption, and in severe cases, unexpected engine stalling while driving.