2006 Jeep Liberty P0032, 38, 52, 58

[jbengle]

My daughter has an '06 Jeep Liberty with 210,000 miles which recently just had the engine seize up. We bought a used engine and swapped it out. Everything went pretty smooth (after a new starter and new radiator). I expected several codes once the new engine got fired up. We reset 12 codes and now the only ones that keep coming back are P0032, 38, 52 & 58 which are all 4 of the oxygen sensors. I have checked and double checked all of our plugs and harnesses. I never had to unplug any of the O2 sensors. I had to unscrew the upstream ones to get a socket on the exhaust bolts, but that is it. I replaced one of the downstream sensors with a new one but the code for that sensor did not go away. I could sure use some ideas on this one.

[Crvett69]

check the fuses, there is one for the O2 heater circuit. can also check for 12v at the O2 plug

[jbengle]

Thanks for your help Crvett69. I couldn't find a fuse for that circuit like it shows for the earlier models. I did find after searching around that I missed one of the ground wires to the engine block. Once I attached that and reset the codes the problem was solved.