I just put in a new to me transmission with 50K miles on it and when I started it for the moment of truth I was only able to use Reverse, and in Drive it only used First and Second gears. I drove it to Honda to get it checked out to see if any sensors or anything needed replaced and they said it was the Transmission Position Sensor, or that is the first place to start. I had one from the old transmission and it shifted fine before I replaced the transmission, the clutch plates just slipped before. I replaced it with the used part and it shifted better, (maybe less stiff) but it still didn't go past 2nd gear. I was told to order a new part, so that is what I am doing tonight. Has anyone had this issue? I feel like I'm just throwing money at it now and would love some input. I'll put the brand new part in tonight and respond back to let you all know.