Code result
P2C51
Fuel Level Sensor A/B Correlation
Moderate severity
What it means
The signals of fuel level sensors A and B do not correlate within the calibrated tolerance. Common in saddle tanks where two sensors monitor each tank half.
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
One float stuck on guide rod
highOne of the most commonly reported causes for this code — check this first.
Saddle tank transfer pump failed
mediumA plausible cause — test and verify before replacing parts.
Related help
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