Code result
P0239
Turbocharger Boost Sensor B Malfunction
Moderate severity
What it means
Generic electrical fault on boost pressure sensor B (twin-turbo or two-stage system). 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
Sensor failed
highOne of the most commonly reported causes for this code — check this first.
Related help
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