P2005
OBD-II Diagnostic Code
Severity: ModerateWhat it means
P2005 means the intake manifold runner flap on Bank 2 is stuck in the open position.
This affects engine performance at low RPM where the runner should be closed for better torque.
The runner actuator, linkage, or flap may be stuck.
Affected Models
- All OBD-II vehicles with variable intake manifolds (1996+)
Common Causes
- Runner flap stuck due to carbon buildup
- Actuator motor or solenoid failed
- Linkage broken or disconnected
- Vacuum line to actuator cracked (vacuum-operated systems)
How to Fix It
-
Inspect the intake manifold runners for carbon buildup.
Carbon deposits can prevent the flaps from closing.
Clean with intake cleaner spray. -
Check the runner actuator and linkage.
The actuator physically moves the flaps.
If it is failed or the linkage is broken, the flaps stay open. -
For vacuum-operated systems: check vacuum lines.
A cracked vacuum line means no vacuum reaches the actuator, leaving the runner open.
Frequently Asked Questions
What do intake manifold runners do?
They vary the effective length of the intake path.
Closed at low RPM for better torque, open at high RPM for more power.
Can I drive with P2005?
Yes.
The engine runs but may have less low-RPM torque.
There is no damage risk.