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P2261CriticalPowertrain

P2261 on 2011-2025 Ford F-150 — Turbocharger/Supercharger Bypass Valve - Mechanical

1 vehicles · 1 makes · $50-$700 repair

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Most Reported On

2011-2025Ford F-150

P2261 is an OBD-II diagnostic trouble code meaning “Turbocharger/Supercharger Bypass Valve - Mechanical.” The PCM has detected that the turbo/supercharger bypass (recirculation/diverter) valve is not performing its mechanical function correctly. This valve vents or recirculates boost when the throttle closes to protect the forced-induction system. The code indicates a mechanical fault (stuck, leaking, or not moving) rather than an electrical circuit fault, so measured boost behavior does not match commanded operation. This code is most commonly reported on 2011-2025 Ford F-150, with repair costs ranging from $50 to $700.

On This Page

  • Common Causes
  • Repair Cost
  • Vehicles (1)
  • Related Codes
  • FAQ
  • Sources (3)
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Common Causes

1Stuck, torn, or leaking bypass/diverter valve diaphragm
2Vacuum/boost leak in the hose to the bypass valve
3Faulty wastegate/bypass solenoid or actuator
4Restricted air filter or intake affecting boost
5Sensor/wiring fault feeding boost data to the PCM

Typical Repair Cost

$50 - $700

Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.

Diagnostic Tools

To diagnose P2261, you'll need an OBD-II scanner. Here are our recommendations at every price point.

Budget Pick$10–$20

ANCEL AD310 Classic OBD-II Scanner

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A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).

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  • I/M readiness status
  • No batteries or app needed
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Best Value$90–$120

BlueDriver Pro Bluetooth Scanner

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Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.

  • Enhanced diagnostics (ABS, SRS, transmission)
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Advanced$180–$230

LAUNCH CRP123X OBD-II Scanner

by LAUNCH

A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.

  • Engine, transmission, ABS, SRS diagnostics
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  • AutoVIN for vehicle identification
  • Free lifetime updates via Wi-Fi
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Professional$350–$450

Autel MaxiCOM MK808S Diagnostic Tool

by Autel

Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.

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  • 7-inch touchscreen with Android OS
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Vehicles Affected (1)

Ford P2261 page →
F-150Moderate

EcoBoost Turbo Underboost (P0299) — Boost Leaks, Bypass Valve Diaphragm, and Warped Air Deflector

2011-2025$50-$7000 reports

Related Codes (8)

P2260Secondary Air Injection System Control "B" Circuit HighP2262Turbo Boost Pressure Not Detected - MechanicalP2263Turbo/Supercharger Boost System PerformanceP2264Water in Fuel Sensor CircuitP0013"B" Camshaft Position Actuator Circuit/Open (Bank 1)P0020Camshaft Position 'A' Actuator Circuit (Bank 2)P0023"B" Camshaft Position Actuator Circuit/Open (Bank 2)P0025"B" Camshaft Position - Timing Over-Retarded (Bank 2)

FAQ

What does P2261 mean?

P2261 stands for "Turbocharger/Supercharger Bypass Valve - Mechanical." The PCM has detected that the turbo/supercharger bypass (recirculation/diverter) valve is not performing its mechanical function correctly. This valve vents or recirculates boost when the throttle closes to protect the forced-induction system. The code indicates a mechanical fault (stuck, leaking, or not moving) rather than an electrical circuit fault, so measured boost behavior does not match commanded operation.

What are the most common causes of P2261?

The most common causes of P2261 are: Stuck, torn, or leaking bypass/diverter valve diaphragm, Vacuum/boost leak in the hose to the bypass valve, Faulty wastegate/bypass solenoid or actuator, Restricted air filter or intake affecting boost, Sensor/wiring fault feeding boost data to the PCM. The specific cause varies by vehicle.

How much does it cost to fix P2261?

Repair costs for P2261 range from $50 to $700, depending on the vehicle and root cause.

Which vehicles are affected by P2261?

Au7o has documented P2261 across 1 vehicle models from 1 manufacturers: Ford.

Sources (3)

  • articleP0299 on 2011-2022 Ford F-150 EcoBoost: Turbo Underboost Causes and Fixes
  • articleP0299 on 2021-2025 Ford F-150: EcoBoost & PowerBoost Underboost Causes and Fixes
  • Forum2014 F150 EcoBoost P0299 turbo underboost — Ford F150 Forum
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.

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