What it means
IMT valve position sensor at bank 2 reads in range but plausibility check fails — value sticks or does not match commanded position.
At a glance
- Usually lights the check-engine light
- Affects emissions; the car can fail an emissions test
How it works
The Bank 2 intake manifold tuning valve changes the intake path, while its position sensor reports where the valve is to the engine computer. P207B sets when the signal is within an electrical range but the Bank 2 feedback does not track the commanded position or fails the computer's plausibility check.
Common causes
Most likely first.
- Position feedback sticks
- Sensor element aged beyond calibration window
- Sensor mounting loose - signal damping
Symptoms
- Check-engine light
- Possible reduced engine power or acceleration
- Possible hesitation or rough running
How to diagnose it
- Review freeze-frame and live data for the Bank 2 commanded and actual IMT positions to identify sticking or delayed feedback.
- Inspect the Bank 2 sensor mounting, connector, and harness for looseness, corrosion, or damage that could affect the position signal.
- Check that the Bank 2 tuning-valve linkage and flap move freely through their travel without binding.
- Use scan-tool controls, if available for the vehicle, to watch whether Bank 2 feedback changes smoothly as the valve is commanded to move.
- Test Bank 2 sensor output and valve response against the manufacturer's specification.
Common fixes
- Secure a loose Bank 2 sensor mounting or connector.
- Clean or repair a binding Bank 2 tuning-valve mechanism where appropriate.
- Repair damaged wiring or corroded terminals in the Bank 2 sensor circuit.
- Replace the Bank 2 position sensor if its feedback fails the manufacturer's specification.
Can I keep driving?
Gentle driving may be possible if there is no major hesitation or power loss. Avoid hard acceleration if the Bank 2 valve is not following commands, since engine response and emissions can worsen.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.