The Oxygen sensor (O2) is an electronic device whose purpose is to measure the concentration of oxygen in the exhaust gases of internal combustion engines. After calculating the oxygen in the exhaust, this information is used to make the necessary adjustments to the air/fuel mixture, to obtain optimum performance of the catalytic converter (TWC), and to determine if it is working properly.
The ECM (Engine Control Module) constantly monitors the performance of the O2 Sensor. If the O2 sensor signal is found to be outside the manufacturer’s specifications, the DTC P2414 OBD2 is set. This code refers to Oxygen Sensor number 1 on bank 1.