P2011
Intake Manifold Runner Control Circuit/Open Bank 2
Fuel & air metering / intake
Generic OBD-II
Medium
What it means
P2011 means the powertrain control module detected an open (or otherwise faulty) circuit for the intake manifold runner control on bank 2. These runners tune intake airflow across the rpm range, so a fault usually shows up as reduced power, rough idle, or hesitation rather than a no-start. Common causes are broken wiring, a failed actuator, or carbon-jammed flaps.
Medium
Can I keep driving? Yes, but you may notice reduced power, rough idle, or hesitation. The engine still starts and runs; drive it gently and repair soon to restore performance and pass emissions.
Common symptoms
What you'll notice
- Check-engine light on
- Reduced power, especially at low or high rpm
- Rough idle or hesitation
- Slight drop in fuel economy
Common causes
Most likely first
- Open or shorted wiring in the intake manifold runner control (IMRC) circuitLikely
- Faulty IMRC actuator or solenoid on bank 2Common
- Stuck or seized runner flaps due to carbon buildupCommon
- Blocked or leaking vacuum hoses to the IMRC actuatorLess often
- Faulty powertrain control module (PCM)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and visually inspect the IMRC wiring and connectors on bank 2 for opens, shorts, and corrosion.
- Check vacuum lines to the runner control actuator for leaks or blockage.
- Test the IMRC actuator/solenoid operation and the runner flaps for free movement; clean carbon or replace as needed.
- Repair any damaged wiring, clear the code, and re-test.
- If the circuit and actuator are good, have the PCM diagnosed.
FAQ
Quick answers
Is it safe to drive with P2011?+
Yes, it's drivable. You may feel some power loss or roughness, but there's no immediate danger — just fix it to restore normal performance.
Can I just clear P2011?+
It returns once the open circuit or stuck runner is detected again. Repair the wiring or actuator for a permanent fix.
Related codes
Often seen with P2011
Read & clear P2011 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX