02 silverado 5.3liter no power at coils...

I have a 2002 chevy silverado with the 5.3
vortec.. Was raining here a few days ago and
I wanted to go fishing.. Well the road to the
fishing spot was nothing but muddy water..
Drove to fishing hole and on my way back
out I hit a decent sized puddle and my truck
dies due to water being sucked into cold air
intake.. Go to start and it ran for 3 seconds
and died.. Now all it does is cranks over with
no spark... Fuel pump kicks on.. I changed
crank sensor and cam sensor and also the
coolant temp sensor and cleaned all
grounds but one due to lack of space to
even reach it.. (firewall to head).. Please
help., I need my truck for work...