P206E–P2070 Intake Manifold Tuning (IMT) Valve Stuck Open Bank 2
The part is not moving as commanded - physically stuck rather than electrically dead.
Can you drive it? The engine light will stay on and the car may run in a reduced-power mode. Read the freeze-frame data to see the conditions the fault was logged under.
Which code is which
Same fault, different cylinder or bank — diagnosed the same way. Several set together usually means one shared cause.
| Code | Definition | Severity |
|---|---|---|
P206E | Intake Manifold Tuning (IMT) Valve Stuck Open Bank 2 | Investigate soon |
P2070 | Intake Manifold Tuning (IMT) Valve Stuck Open Bank 1 | Investigate soon |
The definition
P206E: Intake Manifold Tuning (IMT) Valve Stuck Open Bank 2.
P206E is a manufacturer-specific powertrain code (the engine or gearbox). Its meaning is set by the carmaker rather than by the SAE standard, so a generic OBD-II reader will often show it as an unknown code or misread it.
What to check first
Cheapest and fastest checks first:
- Check the part can move by hand with the engine off, where it is safe to do so.
- Look for carbon or soot build-up, which is the usual reason a flap or valve stops moving on these engines.
What actually causes this on a VAG
A number of VAG V6 and V8 petrol engines use an inlet manifold that can change the length of the inlet tracts - long for pull low down, short for power higher up - switched by a changeover valve, on most of them a vacuum solenoid working a diaphragm actuator. Read as written, this code says that valve was commanded to move and has stayed open. Look hard at the bank before going further. VAG's own fault list records this fault with no bank designation at all, as P2070 "Intake Manifold Tuning (IMT) Valve Stuck Open" and P2071 stuck closed. VAG does carry bank 2 codes for the IMT valve's control circuit, but not for it being stuck, so a P206E from a basic reader is usually a generic lookup of what your car stored as P2070. The car normally still drives, and which end of the rev range feels flat depends on how your engine's manifold is arranged, so do not try to diagnose this one by feel.
Most likely causes, in order
- Vacuum fault, where the flap is vacuum-operated. On most VAG engines fitted with this manifold the flap is moved by vacuum, and the vacuum side is both the commonest failure and the cheapest to check. A perished or split hose, a failed diaphragm inside the actuator can, or a faulty changeover solenoid all mean nothing pulls the flap. A hand vacuum pump on the actuator should move it and hold it there; if the vacuum bleeds away, the can has failed. A cracked rubber hose at the valve is a documented cause of exactly this fault on Audi V6s.
- Carbon build-up jamming the flap. Oil mist from the crankcase breather bakes onto the flap and its shaft, and on direct-injection engines there is no fuel washing over the port to keep things clean, so eventually the flap will not move. With the inlet pipework off, or by moving the actuator arm by hand, the linkage should travel freely and return under its own spring, with no notchiness or sticking points.
- Broken linkage, lever or bush. The levers and pivots in these manifolds are commonly plastic and go brittle with heat and age. The actuator moves, its own arm may even move, but the flap at the far end does not. During an actuator test, watch the flap end of the linkage rather than just the actuator, because that is the whole difference between a cheap repair and a manifold.
- The flap position sensor or an electric actuator. On the engines that use an electric actuator with built-in position feedback this is a genuine possibility, but it is less common than the mechanical and vacuum causes and much more expensive, which is why it belongs last rather than first. There is a useful clue: VAG carries a separate family of codes for the IMT valve position sensor circuit, P2075 to P2079. If nothing from that family is stored alongside, the feedback side is probably reporting honestly and the fault is mechanical.
Worth knowing: Ask for an actuator test with the flap end of the linkage in view, and a hand vacuum pump on the actuator, before any part is ordered. Those two checks separate a split hose or a tired diaphragm - cheap - from a jammed flap or a broken lever, which may mean the manifold comes off or gets replaced. Find out as well whether the changeover valve and the actuator are sold separately for your engine, because on some VAG manifolds they are, and on others they only come with the complete manifold. That answer changes the size of the bill more than anything else on this page.
Reading the code is the easy part
A code names the circuit that complained. What tells you why is watching the sensor behind it while the engine runs — and that is where a code reader stops and a diagnostic tool starts.
VAGPULSE reads every module in a VW, Audi, Skoda or SEAT — not just the engine — shows the live measuring blocks behind this fault, gives you the freeze-frame conditions it was logged under, and clears it once you have fixed it. It also does what a generic OBD reader cannot on a VAG: service resets, coding, adaptations, and Stage 1–3 flashing with your original file saved first.
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Common questions
What does P206E mean?
P206E means Intake Manifold Tuning (IMT) Valve Stuck Open Bank 2. The part is not moving as commanded - physically stuck rather than electrically dead.
Can I drive with P206E?
The engine light will stay on and the car may run in a reduced-power mode. Read the freeze-frame data to see the conditions the fault was logged under.