Code result
P2C9E
Fuel Pressure Regulator C Exceeded Control Limits - Pressure Too Low
High severity
What it means
Fuel pressure regulator C cannot maintain commanded pressure - actual rail pressure drops below the calibrated lower limit.
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
Leak in fuel rail or injector
highOne of the most commonly reported causes for this code — check this first.
Regulator stuck open
mediumA plausible cause — test and verify before replacing parts.
Related help
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