I have a 2002 Lexus GS300 in good mechanical condition. I started having P0430 and P0432 codes (read by an OBDII scan tool). I replaced Both oxygen sensors (bank 1 and bank 2). After I replaced the sensors and erased the codes, I started seeing the P0125 code. I then changed the engine coolant temperature sensor and erased the code. About a month later, I read three codes: P0125, P0430, and P0432. I erased them and now I can only see the P0125 code with the bad exhaust smell and the high fuel consumption.
I am new to this forum and I really like the forum idea exchange and look forward to your replies. Thank you.
