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.
Affected components
- Imrc position sensor b2
- Intake manifold runner
Common causes
- High likelihood: Position sensor drift
- Medium likelihood: Carbon buildup blocks flap travel
- Low likelihood: Sensor element aged beyond calibration window
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.