more on pathfinder trans

[gilman17]

I can manually shift into first gear but the torque converter still doesn't engauge it works but slips or seems to,I can then manualy shift into 2nd gear with a clunk but no 3rd gear or overdrive.Oddly enough reverse works fine torque converter hooks up tight.When I put it into drive it starts in 2nd and stays there,once again the transmisson worked fine for the two months I've had it,untill I got underneath and pulled on the o2 sensor wires,I also had the air cleaner off,but have had it off numerous times as the engine has been in limp mode since I bought it,still haven't found the cause off that code 5 1 injectors read ok on ohm meter may be o2 sensor but I need the trany working first.Thanks to anyone who can help.

[gilman17]

Found the problem loose connecter on inner fender near o2 sensor wire connecter must have bumped earlier. I just pulled apart and repluged the connecters and the trans works fine again,ED