Hyundai Accent (HC): Emission Control System

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

Contents:

Specifications ➤

Description and Operation

- Description Emissions Control System consists of three major systems.

• The Crankcase Emission Control System prevents blow-by gas from releasing into the atmosphere. This system recycles gas back into the intake manifold (Closed Crankcase Ventilation Type).

• The Evaporative Emission Control System prevents evaporative gas from releasing into the atmosphere. This system burns gas at appropriate engine operating condition after gathering it in the canister.

• The Exhaust Emission Control System converts the three pollutants [hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx)] into harmless substances by using the 3-way catalytic converter.

Troubleshooting

- Troubleshooting

SymptomSuspect area
Engine will not start or struggle to startVapor hose damaged or disconnected
Engine struggles to startMalfunction of the Purge Control Solenoid Valve
Rough idle or engine stallsVapor hose damaged or disconnected
Malfunction of the PCV valve
Rough idleMalfunction of the Evaporative Emission Control System

Schematic Diagrams

- Schematic Diagram

Components and Components Location

- Components Location

1. Canister
2. Purge Control Solenoid Valve (PCSV)
3. Fuel Level Sensor (FLS)
4. Fuel Tank Air Filter
5. Catalytic converter (WCC)
6. Catalytic converter (UCC)
7. Vapor Tube (Canister ↔ Intake Manifold)
8. Vapor Hose (Canister ↔ Fuel Tank)
9. Ventilation Hose (Canister ↔ Atmosphere)


1. Canister
4. Fuel Tank Air Filter		2. Purge Control Solenoid Valve (PCSV)

3. Fuel Level Sensor (FLS)5. Catalytic converter (WCC)

6. Catalytic converter (UCC)

7. Vapor Tube (Canister ↔ Intake Manifold)
8. Vapor Hose (Canister ↔ Fuel Tank)
9. Ventilation Hose (Canister ↔ Atmosphere)


Evaporative Emission Control System ➤

Exhaust Emission Control System ➤

Troubleshooting

Specifications

Other information:

Hyundai Accent (HC) (2017 - 2022) Service Manual: Troubleshooting

- Troubleshooting Limp Home Mode Limp Home Mode features a fail-safe function that prevents dangerous situations in the event of a transmission failure. The vehicle will be driven in limp home mode if the transmission malfunctions. In this mode, the transmission operates at a minimal functionality level (fixed shifting, limited shifting, reverse, neutral), making it possible for the vehicle to reach a service center.

Hyundai Accent (HC) (2017 - 2022) Service Manual: Specifications

- Specification Air Conditioner itemSpecification CompressorType6VSe12 Oil type & CapacityFD46XG (IDEMITSU) 110 ± 10cc (3.72 ± 0.34oz.) Displacement126 cc / rev Pulley type6PK - TYPE Expansion valveTypeBlock type RefrigerantTypeR - 1234yf Capacity480 ± 25 g (16.9 ± 0.88 oz.) Blower Unit ItemSpecification Fresh and recirculationOperating methodActuator BlowerTypeSirocco pan Speed stepAuto + 8 speed (Automatic), 7 speed (Manual) Speed controlPWM (Automatic, Manual) Air filterTypeParticle filter Heater and Evaporator Unit ItemSpecification HeaterTypeFin & Tube type TypeTube - Fin 1Way Mode operating methodCable, Actuator Temperature operating methodCable, Actuator EvaporatorTemperature control typeEvaporator temperature sensor Blower singularA/C Output OFF TemperatureA/C Output ON Temperature Manual control1 - 3 speed1.

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