Well I found a 90 n/a auto supra that had spun a bearing on the orignal motor, the guy put in another motor but it wont start me and my friend went and looked at it tonight it cranks great but no start my friend thinks its a ground issue because when the car doors are closed and even locked with the key out of it the check engine light stays on when u put in the key and turn it the light goes off. Its pretty important that i figure this out because if i get it ill be tradeing my girlfriends car for it and thats her only car but she wants a supra like mine so please help. Also the guy said he checked all the fused and changed some of the relays still no start.