Hyundai Accent (HC): Emission Control System / Exhaust Emission Control System

Hyundai Accent (HC) (2017 - 2022) Service Manual / Emission Control System / Exhaust Emission Control System

Contents:

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).

- Removal and Installation [WCC]

1.Remove the exhaust manifold.(Refer to Engine Mechanical System - "Exhaust Manifold")

[UCC]

1.Remove the catalytic converter & center muffler.(Refer to Engine Mechanical System - "Muffler")

CVVT (Continuously Variable Valve Timing) System ➤

Evaporative Emission Control System

CVVT (Continuously Variable Valve Timing) System

Other information:

Hyundai Accent (HC) (2017 - 2022) Service Manual: Fuel Pressure Test

- Fuel Pressure Test 1.Release the residual pressure in fuel line.(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line") • When removing the fuel pump fuse, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of "Release Residual Pressure in Fuel Line" work. 2.Install the Special Service Tool (SST).

Hyundai Accent (HC) (2017 - 2022) Service Manual: Engine Coolant Temperature Sensor (ECTS)

- Description The Engine Coolant Temperature Sensor (ECTS) is located in the cylinder block and cylinder head, and measures the temperature of the engine coolant. The thermistor of the cooling water temperature and resistance has a negative temperature coefficient (NTC) where the resistance decreases when the temperature rises and the resistance increases when the temperature decreases.