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DTC codes / P23xx · Ignition system and misfire / P230E
P230E indicates that the powertrain control module (PCM) has detected an air-fuel ratio imbalance on cylinder 5 that is severe enough to reach the adjustment limit during a balance test. The PCM monitors crankshaft speed fluctuations during a fuel-cut balance test and identifies cylinder 5 as contributing less or more power than the others, meaning the fuel trim correction for that cylinder has maxed out.
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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