Volkswagen P24D6 DTC: Evaporative Emission System Pressure Sensor Issue

Volkswagen P24D6 DTC: Evaporative Emission System Pressure Sensor Issue

The P24D6 diagnostic trouble code (DTC) for Volkswagen vehicles refers to an “Evaporative Emission (EVAP) system pressure sensor/switch B Circuit range/performance” issue. This code is related to the vehicle’s evaporative emissions control system, specifically the pressure sensor or switch that monitors pressure in the fuel tank and EVAP system.

How Serious is This Issue?

The P24D6 code is considered moderately serious. While it may not cause immediate vehicle breakdown, it can lead to increased emissions, reduced fuel efficiency, and potential engine performance issues if left unaddressed.

Is It Safe to Drive with This DTC Code?

It is generally safe to drive short distances with this code, but it’s not recommended for extended periods. The vehicle may experience reduced performance, and continued driving could potentially lead to more severe issues.

Symptoms and Common Causes of This DTC Code


  • Illuminated check engine light
  • Possible engine stalling or misfiring
  • Reduced engine performance
  • Difficulty starting the vehicle

Common Causes:

  • Faulty EVAP pressure sensor
  • Loose or damaged wiring in the EVAP system
  • Malfunctioning purge valve
  • Cracked or loose gas cap
  • Issues with the charcoal canister

How Can I Fix It?

To fix the P24D6 code, follow these steps:

  1. Check and tighten the gas cap.
  2. Inspect EVAP system components for damage or loose connections.
  3. Use a diagnostic tool to check the EVAP pressure sensor readings.
  4. Replace faulty components as necessary (e.g., pressure sensor, purge valve).
  5. Clear the code and perform a test drive to ensure the issue is resolved.

Can I Fix This DTC Code Myself?

Some aspects of diagnosing and fixing this code can be done by DIY enthusiasts with proper tools and knowledge. However, given the complexity of modern EVAP systems, it’s often recommended to seek professional assistance for accurate diagnosis and repair.

What Parts Might Need Replacement and How Much Will the Repair Cost?

Potential Parts for Replacement:

  • EVAP pressure sensor: $18.99 – $118.87
  • Purge valve
  • Charcoal canister
  • Wiring harness

The total repair cost can vary widely depending on the specific issue and labor rates, typically ranging from $100 to $500 or more.

Will the Repair Be Expensive?

The repair cost can be moderate to expensive, depending on the root cause and required parts. Professional diagnosis and labor costs will add to the overall expense.

Additional Information

Can I Reset the DTC Code Myself?

Yes, you can reset the code using an OBD-II scanner. However, it’s important to address the underlying issue first, as the code will likely return if the problem persists.

Will It Affect Performance or Fuel Efficiency?

Yes, the P24D6 code can affect both performance and fuel efficiency. You may experience:

  • Reduced engine power
  • Decreased fuel economy
  • Rough idling or stalling

How Can I Prevent It in the Future?

To prevent future occurrences:

  • Regularly inspect and maintain your EVAP system
  • Ensure the gas cap is properly tightened after refueling
  • Address any check engine lights promptly
  • Follow manufacturer-recommended maintenance schedules

By understanding the P24D6 code and its implications, you can make informed decisions about your Volkswagen’s maintenance and repair needs.

Citations:  My Tiguan – EVAP Issue Discussion  JustAnswer – EVAP Issue – EVAP System Diagnosis  Reddit – EVAP System Discussion

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