Can't think of what it would do off the top of my head, but it is possible to switch the coil packs to run on the wrong cylinders. I put them on wrong on a friends car. We caught it a couple minutes later though and the engine was still out of car. They have the wiring clips that are dark or light colored. The dark/black goes toward the back of the car. the light is in the front. I doubt it's your problem but it could be worth checking. Also have you tested that you have good fuel pressure to the injectors? I ran the fuel lines backwards when I put my motor back in
maybe you got just enough fuel for it to fire on one cylinder. I can't remember what order they actually get fuel. You can take your crank sensor out and measure the resistance to check it. It's easy to get to. I want to say it should be 1.2k ohm.