99reddevilFRC

i bought a 97 vette wrecked needing a ecm (it was ripped out) got one from ssp wiring and put it in and it wont crank. the guy at ssp told me it would have a different vin in the computer but it would still run without additional tuning, but i cant get it to do anything. the only lights that come on the cluster are the check engine and the trac control. please help or send me in the write direction please.