P1283 INFINITI, NISSAN: AIR-FUEL RATIO SENSOR 1 LEAN SHIFT MONITORING BANK 2
POST UPDATED IN June, 2023
P1283 INFINITI, NISSAN: AIR-FUEL RATIO SENSOR 1 LEAN SHIFT MONITORING BANK 2
The Air/Fuel Ratio Sensor (A/F Sensor) is a device that is installed in the exhaust and its function is to take measurements of the oxygen present in the exhaust system where it is installed, and then transmit this data to the Engine Control Module (ECM). This controller, upon receiving the aforementioned information, uses it to regulate the parameters of the fuel mixture, in order to keep it within the stoichiometric range.
The A/F Sensor has a heating element, which helps the sensor reach a temperature of 700 – 800°C (1,292 – 1,472°F), and it is through these that it ensures proper operation and faster oxygen detection. The readings provided by the Air/Fuel Ratio Sensor are accurate and continuous over a wide λ range (0.7 <λ <air).
The P1283 OBDII fault code is set on Nissan and Infiniti vehicles when the ECM calculated output voltage of the Air/Fuel Ratio Sensor number 1 signal from bank 2 shifts to the lean side over a certain time.
P1283 OBD2 diagnostic code is stored for one of the following reasons:
The steps to follow to correct the DTC P1283 OBDII code are as follows: