Code result
P259B
Turbocharger Boost Control Position Sensor B Performance - Stuck High
Moderate severity
What it means
Same as the A-side stuck-high fault, applied to sensor B / turbo B. Boost control tracks commanded vs. actual manifold pressure; persistent deviation means wastegate, vanes, hose or actuator are not delivering the requested pressure.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Actuator mechanically stuck near high end
highOne of the most commonly reported causes for this code — check this first.
Related help
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