P2262 Fault Code

Turbocharger/Supercharger Boost Pressure Not Detected Mechanical

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2262 fault code indicates that the Engine Control Module (ECM) has detected an issue with the turbocharger or supercharger boost pressure. This could mean that the system is not detecting the boost pressure that is expected from the forced induction component. In a turbocharged or supercharged engine, proper boost pressure is crucial for maintaining performance and efficiency. When this code appears, it suggests that a mechanical failure may be present, preventing the system from operating at optimal levels.

What are the symptoms of the P2262 code?

Drivers may experience several symptoms when the P2262 code is triggered, such as:

• Reduced engine power and acceleration.
• Increased fuel consumption due to improper air-fuel mixture.
• Turbo lag, where the engine takes longer to respond under load.
• Check Engine Light (CEL) is illuminated.
• Unusual engine noises from the turbocharger area.
• In some cases, the vehicle may enter limp mode to protect the engine.

What causes the P2262 code?

Common causes of the P2262 code include:

• A failed or damaged turbocharger or supercharger.
• A malfunctioning boost pressure sensor or wiring issues.
• Vacuum leaks in the intake system.
• Blockages in the intercooler or related piping.
• Exhaust leaks before the turbo, affecting its performance.
• An incorrect or faulty wastegate operation.
• A damaged or disconnected hose from the turbocharger to the boost sensor.

How to fix P2262?

To resolve the P2262 fault code, the following steps should be taken:

• Perform a thorough visual inspection of the turbocharger/supercharger and all associated hoses and connections.
• Test and, if necessary, replace the boost pressure sensor, ensuring proper wiring and connections.
• Check for and repair any vacuum leaks in the intake and vacuum lines.
• Inspect the turbocharger components for damage or wear, and replace if necessary.
• Ensure the wastegate is functioning correctly and not stuck open or closed.
• Clear the fault code and test drive the vehicle to confirm that the issue has been resolved and the code does not return.