What it means
A general electrical fault is reported on the IMT valve position sensor at bank 2 — open, short, or out of plausibility.
At a glance
- Usually lights the check-engine light
- Affects emissions; the car can fail an emissions test
How it works
The intake manifold tuning valve changes the intake path, and a position sensor reports the valve's position to the engine computer. P207A identifies a general electrical or plausibility fault in the Bank 2 sensor circuit, such as an open, short, or signal that does not make sense to the computer.
Common causes
Most likely first.
- Position sensor or switch failed
- Open or short in the sensor wiring
- Loose or corroded connector
Symptoms
- Check-engine light
- Possible reduced engine power or acceleration
- Possible hesitation or rough running
How to diagnose it
- Check freeze-frame data and scan-tool readings for the Bank 2 IMT commanded and reported positions and any related circuit codes.
- Locate the Bank 2 sensor and inspect its connector and nearby wiring for looseness, corrosion, damaged insulation, or contamination.
- Check that the Bank 2 tuning-valve linkage is connected and moves freely without binding.
- Use the wiring diagram to test the Bank 2 sensor supply, ground, and signal circuits for opens or shorts.
- Compare Bank 2 sensor output and valve response with the manufacturer's specification before replacing parts.
Common fixes
- Reconnect and secure a loose Bank 2 IMT sensor connector.
- Repair corroded terminals or damaged Bank 2 sensor wiring.
- Free a binding Bank 2 tuning-valve linkage if the mechanism is otherwise sound.
- Replace the Bank 2 position sensor if it fails circuit or output checks.
Can I keep driving?
If the engine remains smooth, cautious driving to arrange a repair is usually possible, but avoid demanding acceleration if power or response is reduced. A faulty Bank 2 tuning-valve signal can impair performance and increase emissions.
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.