truck wont.start please help

Hey guys I have an 07 lbz and we just did the egr delete on it. We have done them on othr trucks with out any issues however I am getting a low engine power. Message on my dash and the truck wont turn over. You can here the relay click but th motor wont turn. When you ark the start it cranks but wont start
. Any ideas? Please let me know if you have any info on the problem.

ECM fuse ? Check all your fuses related to cranking and control modules . Not sure what you could have done related to the delete to cause this.

THANK YOU BIG DIPPER!!!!!!!!!!!!!!! he called me late last night and helped us figure out what the problem was. she is running great now.