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

- Specifications ItemsBulb TypeBulb Wattage (W) FrontHead lampGeneral (Low/High)H455 / 60 Option (Low/High) Bi-function9005 HL+60 Turn signal lamp PY21W21 Position lamp W5W5 Fog lamp H835 Static bending light (SBL) H755 Type B (Daytime Running Lamp - DRL) LEDLED RearRear combination lmap(General)Turn signal lampPY21W21 Stop / Tail lampP21/ 5W21/ 5 Tail lamp W5W5 Back up lampW16W16 Rear combination lmap(Option)Inside Tail/stop lampLEDLED Out side Tail/stop lampLEDLED Turn signal l

Hyundai Accent (HC) (2017 - 2022) Service Manual: Valve Body

- Specifications Indirect Control Solenoid Driven Pulley Control Valve (Secondary_VFS) / Drive Pulley Control Valve (Primary_VFS) / Line Pressure Control Valve (Line_VFS) ItemSpecification Control typeN/H (Normally High) Control pressure kpa (kgf/㎠, psi)0 - 956.14 ± 14.71 (0 - 9.75 ± 0.15, 0 - 138.68 ± 2.13) Current (mA)0 - 1.100 Coil resistance (Ω)5.

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