STUMPED BAD 02 SENSOR PROBLEM!!!!

[smokinss]

Not too sure where to put this but here it goes anyway. About a month ago I started tearing out the tranny to have it rebuilt and do a new clutch etc etc. I finished it all up a few days ago and took it out for a spin. The next day the car started jerking and heistating really bad and I got a SES light, and my Autometer A/F guage stopped reading all together. I had it scanned and it was a bank 1 o2 sensor. So I went home pulled the plugs on the driver side and they were all fouled. So I assumed I needed a new 02.

Well tonight I proceeded to change all of the plugs and my buddie came over with 4 02s that he had laying around from his car. Still in good shape mind you. I swaped one in and the car still runs like shit and my A/F guage still isnt reading at all, it will flash occasionally but thats it. I tried a couple more sensors and still the same thing. Oh BTW this is the front sensor since I have LTs and a ORY. Iam going crazy here guys. I checked to see if the extension harness was melted and its not so I dont know I need help.