P0140 Code: Easy Steps to Solve It
The P0140 trouble code, officially defined as “Oxygen Sensor Circuit No Activity Detected (Bank 1, Sensor 2),” is a diagnostic trouble code (DTC) that indicates an issue with the post-catalytic oxygen sensor circuit. This sensor plays a vital role in monitoring the efficiency of the catalytic converter and ensuring proper vehicle emissions. When this code is triggered, it means the Engine Control Module (ECM) is