Code result
P03DB
Cylinder 8 Pressure Sensor Circuit
High severity
What it means
A general electrical fault on the cylinder 8 combustion pressure sensor — used on engines with closed-loop combustion control (e.g. some Volvo and BMW direct-injection diesels) to measure cylinder pressure directly via a sensor at the glow plug or injector position.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Sensor failed
highOne of the most commonly reported causes for this code — check this first.
Related help
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