P2298 indicates that the oxygen sensor (Bank 2 Sensor 1) is reporting a voltage or resistance outside the expected range during deceleration. The PCM detects abnormal sensor behavior when the throttle is closed and engine speed is dropping.
The sensor can develop internal failure causing its voltage to fall outside the normal deceleration range.
Leaks upstream of the sensor can introduce false exhaust composition, leading to out‑of‑range readings.
Corroded, broken, or loose wiring/connector interrupts the sensor signal and can trigger the code.
A PCM fault can misinterpret sensor data, but this is uncommon and typically only after other components are verified.
Usually not; the PCM rarely causes this code, and replacement is unlikely to resolve the issue unless other tests confirm a module fault.
Driving is possible but may result in reduced fuel economy and failed emissions; it is advisable to address the issue promptly.
Coverage depends on the vehicle’s age, mileage, and manufacturer warranty terms; it varies by make and model.
A scan tool with live data and a digital multimeter are commonly used to evaluate sensor voltage and resistance.