Discussion Starter · #1 ·
Pulled the codes on my 02 2.8l 4motion with 130k today. It is giving me P0056, P0161, P0036 and P0141 which all relate to the Heater control circuit and O2 sensor heater circuit. Bank 1 and Bank 2 sensor 2 on both sides. The car is running great, with no issues. Since I just bought it I would like to fix this. Could both the sensors have gone bad or is it more likely I am looking st some kind of voltage issue for the heater circuit. I hate to replace the sensors if it is just a fuse or a simple fix. I did use the search but didn't really see anything exactly like this issue.