DTC codes / P2Exx · Hybrid propulsion / P2E5B
P2E5B indicates that the engine control module has detected a misfire on cylinder 3 while the engine is running on an alternative fuel such as compressed natural gas, propane, or E85. The computer monitors crankshaft speed fluctuations and identifies that cylinder 3 is not contributing power evenly, specifically when the alternative fuel system is active.
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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