Hyundai Elantra: Emission Control System / Troubleshooting

Hyundai Elantra (CN7) 2021-2025 Service Manual / Emission Control System / Troubleshooting

Troubleshooting

Symptom	Suspect Area
Engine will not start or stuggle to start	Vapor hose damaged or disconnected
Engine stuggle to start	Malfunction of the Purge Control Solenoid Valve
Rough idle or engine stalls	Vapor hose damaged or disconnected
Rough idle or engine stalls	Malfunction of the PCV valve
Rough idle	Malfunction of the Evaporative Emission Control System
Excessive oil consumption	Positive crankcase ventilation line clogged

Components and components location

Components Location1. Canister2. Purge control solenoid valve (PCSV)3. Fuel Tank Air Filter4. Catalytic converter (WCC)5. Catalytic converter (UCC)1. Canister 2...

Specifications

SpecificationsPurge Control Solenoid Valve (PCSV)▷ Specification Item Specification Coil Resistance (Ω)22...

Other information:

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Navigation-Based Smart Cruise Control (NSCC)

Navigation-based Smart Cruise Control can help automatically adjust vehicle speed when driving on highways (or motorways) by using road information from the navigation system while Smart Cruise Control is operating. Information Navigation-based Smart Cruise Control is available only on controlled access road of certain highways...

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Lane Following Assist (LFA)

Lane Following Assist is designed to help detect lane markings and/or vehicles on the road, and assists the driver’s steering to help center the vehicle in the lane. Detecting sensor [1] : Front view camera The front view camera is used as a detecting sensor to help detect lane markings and vehicles in front...

Tire Rotation

To equalize tread wear, HYUNDAI recommends that the tires be rotated according to the maintenance schedule or sooner if irregular wear develops.

During rotation, check the tires for correct balance.

When rotating tires, check for uneven wear and damage. Abnormal wear is usually caused by incorrect tire pressure, improper wheel alignment, out-ofbalance wheels, severe braking or severe cornering. Look for bumps or bulges in the tread or side of the tire. Replace the tire if you find any of these conditions. Replace the tire if fabric or cord is visible. After rotation, be sure to bring the front and rear tire pressures to specification and check lug nut tightness (proper torque is 79~94 lbf·ft [11~13 kgf·m]).