Ok here is the deal. I took on a job from a guy to do a flywheel swap on his 94 civic EX.
Well when I picked it from him he said it was recently had a motor swapped into it, said the crank broke in the other one..(oh well I doubt it though)..Well the motor he got was from a standard. It is throwing 2 codes. 1 and 14..02 and IAC
Well anyways I refilled the tranny after the swap and before the VSS was not working so I took it apart and cleaned the connection up and such. Well when test driving it is shifts pretty hard or what I consider hard, ( I dont drive many autos), and when I slow down it falls hard into the lower gears. Could this be a problem from the IAC? I hope.