P2019
Intake Manifold Runner Position Sensor/Switch Range/Performance (Bank 2)
The IMRC position sensor on bank 2 produces an electrically valid signal that does not match the commanded runner state — typically a sensor drift or sticking flap.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Position sensor driftCommon
- Carbon buildup blocks flap travelPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- IMRC Position Sensor B2
- Intake Manifold Runner
P2019 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.