Downstream O2 sensor and fuel economy 11MPG highway
#21
I have an 04 Ram 1500 V6 that keeps pulling the code P0038, Bank 1 sensor 2. About a month ago it pulled that code and I changed it, it also pulled the code for Bank 1 sensor 1 either 20 miles before or after (I can't remember which). I switched them both out and it ran about 1000 miles and pulled P0038 again which makes me think it may not have been the sensor. Any thoughts?