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DTC codes / P2Axx · Hybrid propulsion / P2A20

P2A20Injection Pump Fuel Metering Control F Low (Cam/Rotor/Injector)

P2A20 indicates that the powertrain control module (PCM) has detected an abnormally low signal in the fuel metering control circuit for injection pump circuit F, which typically involves the cam, rotor, or injector. The PCM monitors the commanded fuel quantity versus actual delivery and sets this code when the feedback voltage or current falls below the expected threshold, indicating a fault in the metering control circuit or a mechanical delivery problem.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage