hardbody not getting spark

i have a 97 hardbody that is not getting spark i pulled into my shop for a couple of days to work on my hood and after i was done i went to pull it out of the shop and it would not start i know it cant be the spark plugs becouse i just changed them i pulled the distributor cap off to see if anything was coroaded but its preety clean anybody know what my problem could be any help would be helpful

Hmmm...? Is it turning over at least? One time I accidently disconected the water temp. sensor for the computer and wouldn't turn on. Check your connectors, something may have been disconnected