Warm Up Three Way Catalytic Converter (WU-TWC)
Warm Up Three Way Catalytic Converter (WU-TWC) (Sedan KL (LX without ABS) model):PURPOSE
The Warm Up Three Way Catalytic Converter (WU-TWC) system is designed to lower HC. CO. and NOx emissions during engine warm up.
The WU-TWC is located in the exhaust pipe A ahead of the three way catalytic converter.