Engine-Codes - Hyundai - P0449 Hyundai

P0449 Hyundai Code - EVAP Emission System Vent Control Valve Solenoid Circuit

- Code Popularity: 43,120 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P0449 Hyundai?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Purge Control Valve harness is open or shorted
  • Purge Control Valve electrical circuit poor connection
  • Faulty canister vent control valve
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How to Fix the DTC P0449 Hyundai?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0449 Hyundai code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The Engine Control Module (ECM) has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0449 Hyundai Code Mean?

The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid (the EVAP canister vent control valve) responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components.
This solenoid valve is used only for diagnosis, and usually remains opened. When the vent is closed, under normal purge conditions, the evaporative emission control system is depressurized and allows EVAP Control System (Small Leak) diagnosis.
P0449 Hyundai Code - EVAP Emission System Vent Control Valve Solenoid Circuit

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