Code result
P21F7
Fuel Control System B Too Rich Off Idle
Moderate severity
What it means
The secondary fuel control loop B on bank 2 reports a rich condition outside idle.
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
Injectors leaking
highOne of the most commonly reported causes for this code — check this first.
Related help
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