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DTC codes / P2Axx · Hybrid propulsion / P2A8E

P2A8EAlternative Fuel Pump A Performance

P2A8E indicates that the powertrain control module (PCM) has detected a performance problem with the alternative fuel pump circuit, typically the pump responsible for delivering a secondary fuel such as compressed natural gas or liquefied petroleum gas. The PCM monitors the pump's electrical current and feedback signals during commanded activation and sets this code when the pump does not respond as expected within a calibrated time window.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
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