Ok, first one. If the rear diff breaks..will the car still move? or will it lock up the tires?

Second, I got a SEL due to o2 sensor freaking out due to a new TBE. Will a tune fix this or a wideband o2? I searched around for o2 bung, wideband and couldn't find the exact answer.

 

ok yes they have the program that a tune can take that code out but most codes you need a ems

and what kind of question is the first one if it brakes dont drive it and find out lol
but what part of the rear diff
and your transaxle will make the car move but proley not smooth lol

 

IE, the rear diff brakes due to lack of fluid.

Will it just be really loud and the car still move?

 

well my freinds rwd car didnt go any where when he borke it three times in his s-13 drifting it kinda just sat there