Hyundai Tucson: Emission Control System / Exhaust Emission Control System

Fuel Filler Cap

- Description A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which seals the fuel filler. After the gasket on the fuel filler cap and ...

Catalytic Converter

- Description The catalytic converter of the gasoline engine is a three way catalyst. It oxidizes carbon monoxide and hydrocarbons (HC), and separates oxygen from the oxides of nitrogen (NOx). ...

Other information:

Hyundai Tucson (NX4) 2022-2025 Service Manual: Heated Oxygen Sensor (HO2S)
- Description Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed on upstream and downstream of the Warm up Catalytic Converter (WCC).After it compares oxygen consistency of the atmosphere with the exhaust gas, it transfers the corresponding voltage signal to the ...

Hyundai Tucson (NX4) 2022-2025 Service Manual: Engine Coolant Temperature Sensor (ECTS)
- Description Water temperature sensor (WTS) is located in the engine coolant passage of the cylinder head for detecting the engine coolant temperature.The WTS uses a thermistor whose resistance changes with the temperature.The electrical resistance of the WTS decreases as the temperature i ...