Rb 20de Neo Tranny Issues Need Help

[kilabee]

fellas im having a hard time with w c35 laurel did an engine swap and make sure the wiring was good for the tranny, but the tranny pulls off on third and doesnt change any gears, i know that the wiring is very important for this to happen but checked everything but nothing......So i plugged in my carman scan tool to the obd1 connector and when i scanned the tranny i got CODE 10 VEHICLE SPEED SENSOR ENGINE & CODE 17 FLUID TEMP SENSOR

now the speedo on my dash goes to about 80 an then falls of to 0

Im thinking if i change the speedo it might fix the problem but there is this fluid temp sensor code 17 that makes me feel i might be wasting time, thinking that the fluid temp sensor might be inside the tranny and thats a whole different i wouldnt really venture so far

i need some advise ASAP!!!!!!

Thanks