Hi Guys, recently joined and this is my first post. I have a 2008 Navara D40 V6 2WD manual which I bought about a month ago. The engine light keeps coming up, so I put a scanner on it and it comes up with code P1283 - Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 2. I took it to the mechanic and same code came up on his scanner and he replaced the AF sensor. Withing 30 minutes of driving the light came back on. Took it back and he replaced the O2 sensor. Same deal within half hour the light came back on. He checked for any air leaks but could not find any. He reckons that the ECU might need to be replaced but I'm not convinced. It drives fine but the light is annoying. Any ideas/advice will be much appreciated!!