P2023
Intake Manifold Runner Position Sensor/Switch Circuit Intermittent (Bank 2)
The IMRC position sensor signal on bank 2 jumps or drops out intermittently — usually a loose pin, partially-broken conductor, or moisture in the connector.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Loose terminal in connectorCommon
- Water ingress into connectorPossible
- Connector with intermittent contact under vibrationLess likely
Parts involved
- IMRC Position Sensor
- IMRC Connector
P2023 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.