Hi All,

I'm new here and new to Ford trucks. I've got a 2010 F350 6.8 litre V-10. I've only had it for a few weeks so I'm very unfamiliar. Right after I bought it I changed the oil, oil filter, and air filter (which was very worn). A few days ago I got a check engine light and it gave me:

P0155 (O2 heater circuit (bank 2, sensor 1))

When changing it the sensor came out great but the plug was melted/mangled. By the time I had the sensor separated from the harness plug you couldn't recognize where one started and the other began. I then bought a new plug "pigtail" to attach to the harness to plug into. After getting the new harness side plug installed I plugged it into the new sensor. I cleared the fault codes and let the truck run for a few minutes. Then I took it for a drive and it ran fine and all the check lights stayed off. The next morning the check light came back and it's telling me now I have:

P0155 (same as before, bank 2, sensor 1)
P0141 (O2 heater circuit (bank 1, sensor 2))
P2197 (O2 sensor signal stuck lean, bank 2 sensor 1))

My logic was that now that I'm having a sensor code on the other side maybe it's my mass air flow sensor. So I cleaned that really well but I'm still stuck with the same codes. After cleaning the sensor I changed to a new O2 sensor (bank 2, sensor 1) just to be sure but I still get the same codes.

Any ideas? Thanks for reading.