Code result
P21FD
Fuel Control System B Too Rich at Higher Load
Moderate severity
What it means
Fuel Control System B Too Rich at Higher Load (Bank 1): the fuel-trim control is correcting for an over-rich mixture in this operating range.
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
Fuel pressure regulator stuck high
highOne of the most commonly reported causes for this code — check this first.
Related help
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