Powertrain
generic / SAE
P206E
Intake Manifold Tuning (IMT) Valve Stuck Open (Bank 2)
The intake-manifold tuning (IMT) valve on bank 2 is mechanically stuck open — long-runner mode is unavailable, breathing characteristic is wrong at low rpm.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number– / 6E
Possible causes
- Carbon buildup blocks flap travel high
- Actuator seized medium
- Carbon or debris buildup preventing free movement low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–700 €
- Estimated time: 0.7–3 h
- Component: imt valve
- Component: imt actuator
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012