P0663Intake Manifold Tuning Valve Control Circuit/Open Bank 2
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- The intake manifold tuning valve switches the manifold length or plenum connection with engine speed (more torque low, more power high); it is not the runner or swirl flap (IMRC, P2004 ff). P0663 means the control circuit of the bank 2 valve is open. Bank 2 codes require a V-engine manifold with two separately switched valves; many V engines use a single central valve between the plenums, and no manufacturer document available to us uses this code, so the description follows bank 1. At GM the bank 1 equivalent (P0660) flags 200 kΩ or more with the driver off and lights the lamp after two trips; Ford runs bank-specific checks only for its runner control flaps (IMRC, P2005/P2011) and treats the tuning valve without the lamp. The valve stays in its rest position, with a power loss around the switch-over speed.
- What you may notice
- Check engine light (depending on the maker)
- Loss of power in part of the rev range
- Actuator does not click when switching
- Likely causes
- LikelyActuator connector loose, corroded or spread
- LikelyBank 2 actuator coil open
- PossibleBroken wire in the harness
- RareOutput driver in the engine module faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €20 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.