OBD-II code · Powertrain (generic, extended)
P2D31 Intake Manifold Tuning Valve Exceeded Learning Limit Bank 1
The required adaptation offset for the intake manifold tuning valve on bank 1 exceeds the calibrated learning window. Mechanism wear or sensor drift beyond compensation.
Is it safe to drive with P2D31?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyMechanism worn at end-stops
- PossiblePosition sensor reference drifted
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- Parts involved
- Intake Manifold Tuning Valve B1, Ecm
Related codes
- P2D2ECold Start Intake Manifold Runner Performance Bank 2
- P2D2FCold Start Turbocharger/Supercharger A Underboost
- P2D30Cold Start Turbocharger/Supercharger A Overboost
- P2D32Intake Manifold Tuning Valve Control Circuit Driver Current/Temperature Too High Bank 1
- P2D33Hybrid/EV Battery Inductive Charger Control Module Processor Performance
- P2D34Hybrid/EV Battery Inductive Charger Control Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.