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P2263 OBD-II Trouble Code: Turbo/Supercharger Boost System Performance

Diagnostic Trouble Code (DTC): P2263

P2263 code definition

Turbo/Supercharger Boost System Performance

Related Trouble Codes:

  • P0039: Turbo/Supercharger Bypass Valve Ctrl Circ Range/Perf
  • P003A: Turbocharger/Supercharger Boost Ctrl “A” Pos Exceeded Learning Limit
  • P003B: Turbocharger/Supercharger Boost Ctrl “B” Pos Exceeded Learning Limit
  • P0045: Turbocharger/Supercharger Boost Control “A” Circuit/Open
  • P0046: Turbocharger/Supercharger Boost Control “A” Circuit Range/Perf
  • P0047: Turbocharger/Supercharger Boost Control “A” Circuit Low
  • P0048: Turbocharger/Supercharger Boost Control “A” Circuit High
  • P0049: Turbocharger/Supercharger Turbine Overspeed
  • P004A: Turbocharger/Supercharger Boost Control “B” Circuit/Open
  • P004B: Turbocharger/Supercharger Boost Control “B” Circuit Range/Perf
  • P004C: Turbocharger/Supercharger Boost Control “B” Circuit Low
  • P004D: Turbocharger/Supercharger Boost Control “B” Circuit High
  • P004E: Turbocharger/Supercharger Boost Control “A” Circuit Intermittent/Erratic
  • P004F: Turbocharger/Supercharger Boost Control “B” Circuit Intermittent/Erratic
  • P006E: Turbocharger/Supercharger Boost Control “A” Supply Voltage Circuit Low
  • P006F: Turbocharger/Supercharger Boost Control “B” Supply Voltage Circuit High

What the P2263 code means

The P2263 diagnostic trouble code indicates that there is a performance issue with the turbo/supercharger boost system.

The turbo/supercharger uses exhaust pressure and an air/fuel mixture to create boost. Vehicle manufacturers predetermine the range in which exhaust pressure is expected to stay. When/if the exhaust pressure falls below or exceeds that predetermined range, the powertrain control module (PCM) will store the P2263 diagnostic trouble code and the Check Engine Light will come on.

What causes the P2263 code?

  • Faulty turbocharger
  • Faulty boost pressure sensor
  • Faulty injection pressure control
  • Faulty exhaust back pressure sensor
  • Faulty wastegate
  • A leak in oil supply lines
  • Broken or loose vacuum lines

What are the symptoms of the P2263 code?

How does a mechanic diagnose the P2263 code?

  • Uses an OBD-II scanner to collect all diagnostic trouble codes that have been stored by the PCM

  • Checks for damage or loose connections in the turbocharger/supercharger boost system hoses

  • Checks for leaks in the turbocharger/supercharger boost system oil supply line

  • Manually open and close the wastegate in order to make sure it is working properly

  • Check the boost sensor, injection pressure control, and exhaust pressure sensor to make sure they are working properly

  • The turbocharger will need to be removed in order to properly inspect it. Remove it and look for oil on the turbocharger. If oil is visible on the turbocharger, the turbo bearing is faulty.

  • Check the turbo shaft for end play. If the turbo shaft is worn out or if it is too loose, the turbocharger will need to be replaced.

  • Inspect the turbocharger, on the side where the exhaust is located, for any obstructions that are causing the vanes to malfunction. If obstructions are visible, the turbocharger will need to be cleaned or replaced.

Common mistakes when diagnosing the P2263 code

Before replacing the turbocharger, it should be taken off and inspected for leaks and possible clogs. If the turbocharger is not taken off to be inspected, this can lead to a misdiagnoses. Other mistakes that are common are:

  • Neglecting to inspect the vacuum lines for leaks, breaks, or loose connections before replacing the turbocharger

  • Neglecting to inspect oil supply lines for leaks, breaks, or loose connections before replacing the turbocharger

How serious is the P2263 code?

While the P2263 diagnostic trouble code is stored, the vehicle may stall and shut off during operation. The vehicle may also be difficult to drive. For these reasons, this diagnostic trouble code is considered serious. Operation of the vehicle should be severely limited and should be diagnosed and repaired as soon as possible.

What repairs can fix the P2263 code?

  • Replace faulty turbocharger
  • Replace faulty boost pressure sensor
  • Replace faulty injection pressure control
  • Replace exhaust back pressure sensor
  • Replace faulty wastegate
  • Repair or replace leaks, or loose vacuum lines
  • Repair or replace leaks or damaged oil supply lines

Additional comments for consideration regarding the P2263 code

The P2263 diagnostic trouble code is most likely due to failure of the turbocharger. However, it is good practice to thoroughly inspect all other components of the turbocharger system as well. Although failure of the turbocharger is common, failure of any of these components may also cause the P2263 diagnostic trouble code to be stored by the PCM.

Need help with a P2263 code?

YourMechanic offers certified mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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