Code result
P2BB1
Alternative Fuel Consumption Too High
Moderate severity
What it means
The AFCM detects that alternative fuel consumption exceeds the expected value for the active operating mode. Indicates injector leakage, fuel pressure too high, or unmetered fuel loss.
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
Alt fuel injector leaking
highOne of the most commonly reported causes for this code — check this first.
Fuel rail pressure above target
mediumA plausible cause — test and verify before replacing parts.
Related help
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