P2005 on 2004-2014 Subaru WRX STI — Intake Manifold Runner Control Stuck Open (Bank 1)
1 vehicles · 1 makes · $250-$1,400 repair
Most Reported On
P2005 is an OBD-II diagnostic trouble code meaning “Intake Manifold Runner Control Stuck Open (Bank 1).” This code means the engine computer detected that the intake manifold runner control (IMRC) for Bank 1 is stuck in the open position. The IMRC system uses flaps inside the intake manifold to change airflow length and velocity depending on engine speed, improving low-end torque and high-end power. When the runners are stuck open, the engine can't optimize airflow, which may cause rough low-speed running, reduced power, and a check engine light. It is not an immediate breakdown risk but should be addressed to restore performance and pass emissions. This code is most commonly reported on 2004-2014 Subaru WRX STI, with repair costs ranging from $250 to $1,400.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P2005, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
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)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
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
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
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.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does P2005 mean?
P2005 stands for "Intake Manifold Runner Control Stuck Open (Bank 1)." This code means the engine computer detected that the intake manifold runner control (IMRC) for Bank 1 is stuck in the open position. The IMRC system uses flaps inside the intake manifold to change airflow length and velocity depending on engine speed, improving low-end torque and high-end power. When the runners are stuck open, the engine can't optimize airflow, which may cause rough low-speed running, reduced power, and a check engine light. It is not an immediate breakdown risk but should be addressed to restore performance and pass emissions.
What are the most common causes of P2005?
The most common causes of P2005 are: Carbon buildup jamming the runner flaps, Stuck or seized IMRC actuator, Broken or disconnected runner control linkage, Failed vacuum-operated runner actuator or leaking vacuum line, Faulty intake manifold runner position sensor, Wiring or connector fault to the IMRC solenoid, Damaged intake manifold runner assembly. The specific cause varies by vehicle.
How much does it cost to fix P2005?
Repair costs for P2005 range from $250 to $1,400, depending on the vehicle and root cause.
Which vehicles are affected by P2005?
Au7o has documented P2005 across 1 vehicle models from 1 manufacturers: Subaru.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.