Code result
P2A21
Injection Pump Fuel Metering Control F High
High severity
What it means
The control signal for injection pump metering channel F is above the expected window. Wire shorted to B+ or actuator open.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Control wire shorted to B+
highOne of the most commonly reported causes for this code — check this first.
Open metering actuator
mediumA plausible cause — test and verify before replacing parts.
Related help
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