Code result
P2B81
Wastegate Position Sensor A Circuit Performance
High severity
What it means
The wastegate position sensor A signal does not correlate with the commanded actuator position within tolerance. Sensor offset, mechanical wear, or signal integrity degraded.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Sensor mechanically offset from actuator
highOne of the most commonly reported causes for this code — check this first.
Linkage between sensor and wastegate worn
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P2B81 freeNo credit card required