Nissan Sentra Oxygen Sensor Location and Info. 2020 2021 2022 2023

Bank 1 Sensor 1 oxygen sensor (A/F Sesnor) is an important component of the engine management system on a Nissan Sentra. The oxygen sensor is responsible for measuring the oxygen content in the exhaust gases, which helps the engine control module (ECM) adjust the air/fuel mixture for optimal engine performance and emissions control. If the Bank 1 Sensor 1 oxygen sensor on a Nissan Sentra is not functioning properly, it can cause several issues, including: 1. Check Engine Light: A faulty oxygen sensor can cause the check engine light to come on and may trigger OBD2 codes related to the fuel system, such as P0171, P0174, or P0130. 2. Poor Fuel Economy: A malfunctioning oxygen sensor can cause poor fuel economy, as the engine may not be operating as efficiently as it should. 3. Engine Performance Issues: A bad oxygen sensor can cause engine performance issues, such as rough idling, hesitation, or stalling. 4. Failed Emissions Test: If the oxygen sensor is not working properly, it can cause the vehicle to fail an emissions test. The specific OBD2 codes that may be triggered by a faulty Bank 1 Sensor 1 oxygen sensor on a Nissan Sentra may vary, but common codes include P0130 (O2 Sensor Circuit Malfunction), P0131 (O2 Sensor Circuit Low Voltage Bank 1 Sensor 1), P0132 (O2 Sensor Circuit High Voltage Bank 1 Sensor 1), and P0135 (O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1). If you suspect that the Bank 1 Sensor 1 oxygen sensor on your Nissan Sentra may be faulty, it...