P2015
Intake Manifold Runner Position Sensor/Switch Range/Performance (Bank 1)
The IMRC position sensor on bank 1 reports a value, but it does not match the commanded flap state — for example, the flap is commanded closed yet the sensor still reads open. Common on engines where the connector pin clip wears out and the sensor reads erratic positions.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Connector clip worn — intermittent contactCommon
- Flap sticking due to carbonPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- IMRC Position Sensor
- IMRC Actuator
P2015 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.