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: Specifications

- Service data ItemSpecification Transmission typeSmartstream IVT Engine typeGasoline 1.6 MPI Clutch typeTorque converter Torque converter sizeØ 210mm(8.2677in.) Oil pump typeChain drive vane pump Planetary gearDouble pinion planetary gear Gear ratioForward2.68 - 0.385 Reverse2.822 - 1.822 Final gear ratio4.892 Component elementsOil pump1 unit Oil filterMain filter : 1 unit pressure filter : 1 unit Clutch1 unit Brake1 unit Planetary gear1 unit Drive pulley1 unit Driven Pulley1 unit Chain belt1 unit Solenoid valveDirect Control VFS : 1 units Indirect Control VFS : 4 units *IVT : Intelligent Variable Transmission *IVTF : Intelligent Variable Transmission Fluid*VFS : Variable Force SolenoidPosition Switch ItemSpecification Power supply (V)4.

Hyundai Accent (HC) (2017 - 2022) Service Manual: Audio Unit

- Components [Bluetooth + Blue Link + SXM] Connector Pin Information NoConnector AConnector BConnector C 1Left rear door speaker (+)-B_CAN (HI) 2Left rear door speaker (-)Mic signal (+)C_CAN (HI)-bluelink only 3--- 4--- 5-Antenna power - 6Cameara powerIllumination (+)- 7Camera videoMM CAN (High)- 8--B_CAN (Low) 9-Alt L out (-)C_CAN (Low)-bluelink only 10AUX AudioBattery (+)- 11AUX DetectBattery (+)- 12Steearing wheel remote controllerGround- 13Left front door speaker (+)Groun

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