I just finished up cleaning the MAF, installing a new battery and putting in new plugs in my 2000 Maxima SE and now it will not start! It cranks but does not turn over. What could I have done wrong?

The plugs went in pretty easily. The only thing that I can think of is when I was putting one of the coils back in along the firewall I bent it a little and it made a cracking noise. I was not sure if I damaged it though.

The car did start after I installed the plugs but then I put the new battery in and now it will not start. Any ideas? Thanks guys and girls!