P207B code meaning
Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Range/Performance (Bank 2)
Powertrain system Generic code P20xx codes Check engine light
What P207B means
On bank 2, the valve feedback is electrically valid yet does not match what the flap should be doing, for instance it changes too slowly, sticks at an intermediate value or disagrees with the commanded state. No manufacturer documents P207B. The closest documented logic is GM's bank 1 code P2076, which fails the actuator learn sweep when the reported position lingers inside the 5-35 % band for five seconds, or when learning restarts ten times in one key cycle. A plausibility code like this often points at mechanics rather than electrics: a flap that binds or a slipping coupling falsifies the movement profile even with an intact sensor. Compare with P206E/P206F, which judge the end positions of the same flap.
P207B at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2.5 hours
- Clears after repairAfter a drive cycle
Symptoms of P207B
- Check engine light (manufacturer-dependent)
- Possibly uneven power delivery
Common causes of P207B
- Most likelyBank 2 flap binding, movement profile does not match the command
- PossibleCoupling between sensor shaft and flap slipping
- Less likelySensor characteristic drifted with age and heat
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Imt position sensor
What each part of P207B means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 0 | Area: fuel and air metering and auxiliary emission controls. |
| 7B | The exact fault in that area. |
What to do next
- Note P207B and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P207B
What does P207B mean?
P207B means "Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Range/Performance (Bank 2)". On bank 2, the valve feedback is electrically valid yet does not match what the flap should be doing, for instance it changes too slowly, sticks at an intermediate value or disagrees with the commanded state. It is a generic code, so it means the same on every make.
Is it safe to drive with P207B?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P207B fail an emissions test?
Yes, it can. P207B is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P207B to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P207B clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.