The B23A0-92 was produced during a time when Honda was heavily involved in motorsports, particularly Formula 1, which influenced its street-car engine designs. This engine was used in several influential Honda and Acura models of the early 1990s, including: The Best 4-Cyl Engines Ever: Honda B-Series
General specifications for the 2.3L DOHC architecture from this era include: 2.3 Liters (Approx. 2259 cc) Configuration Inline 4-Cylinder Camshafts DOHC (Dual Overhead Camshaft) Power Output Typically ~150–160 hp (unmodified) Rotation honda b23a0-92
Honda’s technical service bulletins (TSBs) point to three main culprits. Understanding the cause helps you avoid repeat failures. The B23A0-92 was produced during a time when
Inside the air mix actuator is a potentiometer (variable resistor) that tells the climate control unit exactly where the blend door is located. This sensor can develop dead spots or fail open-circuit. The computer sends a command, sees no change in voltage from the sensor, and sets B23A0-92. Understanding the cause helps you avoid repeat failures
The air mix motor uses small plastic gears to transfer motion to the blend door shaft. Over time, especially if the blend door itself becomes stiff (due to debris or warping), the motor’s plastic gears strip. When the motor runs but the door doesn’t move, the position sensor detects no change, triggering the -92 code.