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P0297 Code – What Does It Mean & How To Fix It

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it.


In the first place, I’d like to begin with a simple definition. A standard system used in vehicles to identify and communicate problems within different systems is the DTC code, also known as OBD Diagnostics II.  OBD.I. One of these codes is P0297, and it relates specifically to turbocharger or supercharger failures.


P0297 precisely indicates a “Turbocharger/Supercharger ‘A’ Control Range/Performance.” This means that your vehicle’s turbocharger and supercharger have not been running in the predicted range of performance. In this case, the ‘A’ in the code usually identifies the primary turbocharger in a dual-turbo configuration.


To effectively troubleshoot a P0297 DTC code, it is essential to understand what produces it. Typical reasons include

  • Wastegate malfunction: The wastegate, which regulates boost pressure, may be broken.
  • Open or Closed Wastegate: A wastegate that is stuck in either position might cause performance problems.
  • Vacuum Leaks: Boost control may be impacted by any vacuum leaks in the system.
  • Issues with the Boost Control Solenoid: Performance may be impacted by boost control solenoid issues.
  • Faulty Sensors: Issues with sensors that monitor the turbocharger’s performance can trigger this code.


You can find the problem more quickly if you recognize the symptoms that go along with a P0297 code. Typical signs include:

  • Lowered Engine Power: The engine power of your car might be lowered.
  • Check Engine Light: The most apparent sign is the illuminated check engine light on your dashboard.
  • Decreased Fuel Efficiency: Performance issues can lead to decreased fuel efficiency.
  • Unusual Engine Behavior: You may notice unusual engine behavior or noises.


Diagnosing a P0297 code typically involves:

  • Code Scanning: Utilize an OBD-II scanner to retrieve the code.
  • Visual Inspection: Inspect the turbocharger/supercharger systems for visible issues.
  • Wastegate Inspection: Check the wastegate for proper operation.
  • Vacuum Leak Testing: Inspect the system for vacuum leaks.
  • Sensor and Solenoid Testing: Verify the functionality of sensors and the boost control solenoid.

Common mistakes

Avoid these common mistakes when dealing with a P0297 code:

  • Ignoring It: Ignoring the code can lead to more significant issues and potential engine damage.
  • Replacing Parts Without Diagnosis: Avoid replacing parts without proper diagnosis, as this can be costly and ineffective.

How serious is this?

A code of P0297 is serious, depending on the underlying issue and how it’s dealt with. If you ignore this, it could harm your vehicle’s performance and fuel efficiency and possibly damage the engine.

What repairs can fix the codeS?

repair manuals

To resolve a P0297 code, you may need to:

  • Repair or Replace the Wastegate: If it’s faulty or stuck in the wrong position.
  • Address Vacuum Leaks: Correct any vacuum leaks in the system.
  • Replace Sensors or Solenoids: If they are malfunctioning.
  • Check and Adjust Boost Pressure: Ensure boost pressure falls within the expected performance range.

Related codes

It’s essential to be aware of related codes, such as P0290 (Turbocharger/Supercharger ‘A’ Control Circuit Low) and P0291 (Turbocharger/Supercharger ‘A’ Overboost Condition).


Lastly, the P0297 DTC code is indicative of a performance problem in your vehicle’s turbocharger or supercharger system. Failure to address this or a mistaken diagnosis of the issue can lead to performance and efficiency problems. The correct handling of the code, as well as its accurate diagnosis and immediate solution to the underlying cause, will be essential for ensuring your vehicle runs smoothly.

P0297 Code – What Does It Mean & How To Fix It