My Van Won't Start Easily After Changing Ignition

An attempts was made to steal my van recently. The robber vandalized door and drilled out the ignition cylinder to remove the ignition (the key case). I guess I was saved by the immobilizers around the ignition. He couldn't move the car. The cylinder was broken and I had to change it. I had to get entire steering column which I did swap it's cylinder, immobilizers and ignition coil. I would have preferred to change the entire column but I can't find the exact one that fits. So, I was advice to just swap those parts.

Now, my van will start and shut down several times before it will then start and move. I don't know what's really wrong. Any ideas of what I'm possibly missing.?????

Thanks.