P2450 OBD-II: Evaporative Emission System Switching Valve Performance/Stuck

P2450 Severity

Moderate

Will P2450 go away on its own?

Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.

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Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.

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What causes OBD-II fault code P2450?

The Leak Detection Pump is part of the Evaporative Emissions System. After the vehicle has been sitting for a few hours, this pump will turn on and create a vacuum in the EVAP system. The engine computer (PCM) runs this test when the vehicle is off. If the PCM does not see the Leak Detection Pump activate as requested, or does not see a vacuum created in the EVAP System, the PCM will set code P2450.

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Tuffy Tire & Auto Service Center - Grandview

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Excite Auto Repair & Towing

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All In Auto Service

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Tuffy Tire & Auto Service - Grove City

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What Does P2450 Code Mean?

OBD-II Code P2450 is defined as a Evaporative Emission System Switching Valve Performance/Stuck

The Leak Detection Pump is part of the Evaporative Emissions System. After the vehicle has been sitting for a few hours, this pump will turn on and create a vacuum in the EVAP system. The engine computer (PCM) runs this test when the vehicle is off. If the PCM does not see the Leak Detection Pump activate as requested, or does not see a vacuum created in the EVAP System, the PCM will set code P2450.

Common Problems That Trigger the P2450 Code

  • Evap leak detection pump failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue
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