P2B82 code meaning
Wastegate Position Sensor B Circuit Performance
Powertrain system Generic code P2Bxx codes Check engine light
What P2B82 means
P2B82 is the performance fault for the second electric wastegate, found only on engines with two turbochargers and position-controlled wastegates. No manufacturer documents this exact code publicly. By analogy with GM's checks for wastegate A (P2B81 in 19OBDG03D), the computer would flag lasting gaps between commanded and measured position, or a motor that needs abnormal current or duty cycle to hold its target. GM letters a parallel layout so that charger A sits on bank 1, which would put B on bank 2. Ford's patent US9243553B2 adds that heat changes linkage length and shifts the sensor reading, so a worn or binding linkage can mimic a sensor fault. Circuit faults on side B are P2ABA to P2ABC; the stuck-type counterpart is P0248.
P2B82 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2B82
- Warning lamp with stored code
- Uneven or reduced boost, weaker pull
Common causes of P2B82
- Most likelyWastegate valve B or linkage binding from heat and deposits
- PossibleActuator B worn, gear or motor weak
- Less likelyLoose linkage or retaining clip
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Wastegate position sensor bWastegate actuatorECM
What each part of P2B82 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| B | Area: hybrid propulsion. |
| 82 | The exact fault in that area. |
What to do next
- Note P2B82 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 P2B82
What does P2B82 mean?
P2B82 means "Wastegate Position Sensor B Circuit Performance". P2B82 is the performance fault for the second electric wastegate, found only on engines with two turbochargers and position-controlled wastegates. It is a generic code, so it means the same on every make.
Is it safe to drive with P2B82?
Drive gently and only to a workshop. With P2B82 the car can go into limp mode (reduced power) to protect itself.
Will P2B82 fail an emissions test?
Yes, it can. P2B82 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 P2B82 to fix?
Difficulty: hard. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P2B82 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.