Code result
P003A
Turbocharger/Supercharger Boost Control A Position Exceeded Learning Limit
High severity
What it means
Turbocharger/Supercharger Boost Control A Position Exceeded Learning Limit: the control module has detected this fault condition. This affects turbo/supercharger boost-pressure control.
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
Wastegate actuator worn or sticking
highOne of the most commonly reported causes for this code — check this first.
Linkage rod stretched or loose
mediumA plausible cause — test and verify before replacing parts.
Related help
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