I have a 01 Honda Accord 3.0 V6 about a week ago my traction control light came on and the D4 light started flashing. The car would shift into 2nd but wouldn’t shift out of 2nd it’s would just build RPM’s. I got the check engine light tested and it gave me codes for shift valve B malfunction and the range sensor. I went and bought the range sensor and had my transmission guy come look at it and he told me to take it back and get a neutral switch which I did. I replaced the neutral switch and afterwards the car still felt really slippy and jerky into 2nd and 3rd. The lights don’t light up like they used to I have to put it into D3 and then back into D4 to get the light to turn on if not it won’t shift what so ever, but once in D4 it will shift and function like it supposed to. Tonight it started doing it again except worse. It’ll jerk into 1st jerk into 2nd and then jerk into 3rd after building RPM’s to 4,000+ when it shifts down it’ll jerk very hard and going back into 1st it’ll continue to jerk forward. If I shut the car off and start it back up it’ll fix the problem up until I come to a complete stop again but after I take off and shift through a couple of gears it’ll start jerking again. I have no idea what’s wrong with it and obviously my transmission guy is no help someone tell me what I need to purchase and replace because I’m stumped and have no idea what to do next.