92_EGhatch

hey guys i bought a well 95 civic vx from my BNL without the engine...So i swap in a dx motor and used the vx tranny and harness, but i have a problem when completed the swap and took it for a test run and so when i hit the freeway at 60-70 mph my check engine light came on...so i did a code check and it shows my vss vechicle speed sensor is bad and also couple weeks after that my speed odometer needle is not moving... i went to the junk yard and got one but still doesn't work...so do u guys think i should get a new vss or change the vtec hardness to a non-vtec hardness.