P0254 — Injection Pump Fuel Metering Control "A" Low (Cam/Rotor/Injector)
What it means
P0254 is an OBD-II diagnostic trouble code: Injection Pump Fuel Metering Control "A" Low (Cam/Rotor/Injector).
Typical fix
Confirm the code with an OBD-II scanner, then inspect the component or circuit named above. Consult a vehicle-specific service manual for the full diagnostic and repair procedure.