Code result
P2C20
Cold Start Fuel Pressure Regulator A Exceeded Control Limits - Pressure Too High
Moderate severity
What it means
During cold start, fuel pressure regulator A overshoots target pressure - actual rail pressure rises above the calibrated upper limit.
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
Regulator stuck closed at cold start
highOne of the most commonly reported causes for this code — check this first.
Fuel return path blocked by cold viscosity
mediumA plausible cause — test and verify before replacing parts.
Related help
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