Okay I'll have to start checking out the wiring and see what I can find.
This may be a dumb question but I might clear somethings up for me, if the car is in closed loop at idle and runs rough is the a reason why just cruising down the road in closed loop the afr are steady and everything is nice and smooth. The idle also improves when the AC is on, why does a bad working sensor seem to improve when there is load on the car? That is the only thing I can't get my head around.
Btw thank you for the help trouble shooting, things like this is not my strong point.