P2B93
Wastegate Position Sensor A Exceeded Learning Limit
The required adaptation offset for the wastegate position sensor A exceeds the calibrated learning window. Sensor or mechanism out of nominal range.
The required adaptation offset for the wastegate position sensor A exceeds the calibrated learning window. Sensor or mechanism out of nominal range.
Common causes
- high
Mechanical wear shifted end-stops
One of the most commonly reported causes for this code — check this first.
Typical part cost: $220-1320
- medium
Sensor reference drifted
A plausible cause — test and verify before replacing parts.
Typical part cost: $220-1320
See all causes + fix costs
Create a free Wrenchify account to unlock the rest for P2B93.
Unlock causesFree forever · No credit card
First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
Get the full step-by-step diagnosis
Create a free Wrenchify account to unlock the rest for P2B93.
Unlock diagnosisFree forever · No credit card
Related codes
See related trouble codes
Create a free Wrenchify account to unlock the rest for P2B93.
Unlock related codesFree forever · No credit card
Frequently asked questions
What does P2B93 mean?
P2B93 means "Wastegate Position Sensor A Exceeded Learning Limit". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P2B93?
mechanical wear shifted end-stops; sensor reference drifted — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
Get the full P2B93 diagnosis for your vehicle
Year, make, model + step-by-step repair help — free plan included.