What it means
The control module has detected the intake manifold runner control stuck open on bank 2. The code does not establish the runner design or a particular effect on engine operation.
At a glance
- Usually lights the check-engine light
- Affects emissions; the car can fail an emissions test
How it works
The intake manifold runner control changes airflow through the intake passages on bank 2, often by moving flaps with an actuator. The control module compares the requested runner position with available position or system feedback. P2005 sets when the bank 2 runner is detected remaining open when it should move, though the code alone does not identify the runner design or its effect on this engine.
Common causes
Most likely first.
- Carbon buildup blocks flap travel
- IMRC actuator failed on bank 2
- Carbon or debris buildup preventing free movement
Symptoms
- Check-engine light
- Reduced engine power or sluggish acceleration
- Rough idle or hesitation
How to diagnose it
- Review freeze-frame data and runner command or position live data to see when bank 2 failed to respond and whether the fault is repeatable.
- Inspect the bank 2 runner linkage and flaps for carbon buildup, debris, binding, or a disconnected link.
- Check the bank 2 actuator and its electrical connector or vacuum hoses, as fitted, for damage, poor connections, leaks, or collapsed sections.
- With a scan tool, command the bank 2 runner through its available range and observe whether the actuator and position feedback respond.
- If movement is still restricted, test the actuator and feedback circuit using the manufacturer's procedure and compare results with the manufacturer's specification.
Common fixes
- Clean carbon or debris that is binding the bank 2 runner flaps, if serviceable.
- Reconnect or repair a loose or damaged bank 2 actuator connector, hose, or linkage.
- Repair wiring or vacuum supply faults affecting the bank 2 actuator.
- Replace a failed bank 2 actuator or position sensor after confirming the fault.
Can I keep driving?
If the engine runs normally, a short, gentle drive may be possible, but sluggish acceleration or hesitation can make merging and passing less predictable. Avoid hard acceleration and arrange diagnosis soon; continued poor airflow control can worsen drivability and emissions.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.