P2005Intake Manifold Runner Control Stuck Open (Bank 2)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2005 is the bank 2 version of the stuck-open check, so it only exists on V and boxer engines with a flap set per cylinder bank. The ECM has commanded the flaps on bank 2 closed, but the position feedback says they stayed open. Ford runs it on vacuum-operated V engines once coolant is above 40 °F and logs it after four failed events; on the 2017–2019 Super Duty 6.2L Ford found cracked vacuum hoses on the manifold and supplies the hoses alone instead of a new manifold. Audi links P2005 on the 4.0 TFSI (A8, S6, S7, RS 6, RS 7) to moisture in the flap potentiometer and fits a repair kit on both banks; the engine may be held to 4,000 rpm. Subaru names it on Forester Turbo and WRX, where EGR condensate corrodes the tumble valve shaft. Open flaps mostly cost low-speed torque and smooth idle.
- What you may notice
- Malfunction indicator lamp on
- Less pulling power at low engine speed
- Rpm limit on some Audi V8 engines
- Likely causes
- LikelyCracked or loose vacuum hose to the bank 2 flap actuator
- PossibleMoisture in the flap potentiometer giving a false position (Audi 4.0 TFSI)
- PossibleFlap shaft corroded or seized in the open position
- RareTorn diaphragm in the vacuum actuator
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €20 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.