Powertrain
Definition only
Lights the check engine lamp
P2A21: Injection Pump Fuel Metering Control F High (Cam/Rotor/Injector)
Standardized SAE J2012 code · P2Axx codes
What does P2A21 mean?
The control signal for injection pump metering channel F is above the expected window. Wire shorted to B+ or actuator open.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Control wire shorted to B+
- Medium Open metering actuator
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2A21 on the same make and model first.
P2A21 in the community
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Describe your P2A21 problemRelated codes
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