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DTC codes / P2Axx · Hybrid propulsion / P2A87
P2A87 is a generic OBD-II code that indicates the powertrain control module (PCM) has detected an open circuit or excessive resistance in the electrical path controlling the compression stroke valve for the alternative fuel pump on bank C. The PCM monitors the valve control circuit and sets this code when the commanded current or voltage does not match expected values, typically due to a wiring fault, connector issue, or failed valve solenoid.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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