We just changed the timing belt and pulley on my son's 2000 Civic EX. Car started up but with a belt squealing and then shut down! It ran for maybe 5 seconds. Now we have tested the plug wires and there is no spark at all. What could have gone wrong or be wrong??

 

Welcome in,it should run even if your off a tooth or two on the tbelt...just might run poorly ,also check to see if the cam sensor in plugged back in.