Honda B23a0-92 May 2026

99% probability you did not perform a BMS reset. The car still thinks the old, weak battery is installed. When the new battery’s voltage stays higher than expected, the PCM flags it as “sensor performance error.”

If cleaning and battery replacement don’t work, the sensor itself has failed internally. The OEM Honda part number is usually 38920-TLA-A11 or 38920-TBA-A01 (verify for your VIN). Aftermarket sensors (Denso, Standard Motor Products) work but must be programmed—Honda’s PCM expects a specific calibration curve.

Warning: Do not buy a used sensor. Each sensor is factory-calibrated to the vehicle’s particular BCM. Used sensors often have mismatched internal memory. honda b23a0-92

| Category | Details | |----------|---------| | Type | Short block (cylinder block + crank + pistons + rods, no head) | | Displacement | ~2.3L (actual: 2,254–2,300cc depending on bore/stroke) | | Engine Family | Honda B23 (industrial) | | Common in | Honda outboard motors (BF225, BF230), some generators, pressure washers | | Years | Early 1990s – 2000s |

Short answer: Yes, but with caveats.

The vehicle remains drivable. The check engine light being on may cause you to fail an emissions inspection in some states (because the monitor for the charging system is "not ready"). More importantly, the car’s battery will not be managed optimally. Over time, this can shorten battery life from 4-5 years to maybe 1-2 years. You may also experience a dead battery if the vehicle sits for more than a few days.

If the code is accompanied by a red battery light or warning that says “Stop driving—charging system failure,” do not drive. That indicates a failed alternator, not just the sensor. Otherwise, schedule repair within a few weeks. 99% probability you did not perform a BMS reset

Chrome light catches the cast-aluminum head like a wink from an old racetrack. The B23A0-92 is not a headline-grabbing superstar, but it’s the kind of engine that earns respect in quiet, oily ways: compact, willing, and built with the kind of engineering modesty that quietly outlives flashier rivals.

The repair cost varies widely, from $0 (reset) to $500+ (dealer sensor replacement). Here is your action plan: If cleaning and battery replacement don’t work, the

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