oxygen sensor or harness?
172 is O2 not switching (constant lean code). You can test the O2 with a volt meter, but if it's due for replacement anyway I'd go ahead and replace it, then troubleshoot if the code doesn't go away.
632 is an indication that the transmission control switch wasn't cycled after the engine code. Not sure what the TCS is, maybe the overdrive button on the end of the shifter stalk?
632 is an indication that the transmission control switch wasn't cycled after the engine code. Not sure what the TCS is, maybe the overdrive button on the end of the shifter stalk?
I remembered I had the 15amp fuse out from my little test this morning so I think thats why it gave me the lean code. I put that back in and did the test again also clicking the OD button twice, this time the codes are 173 and 225

