have you checked the fuel cutoff switch just below the glove box on the kick panel? make sure its pushed in.
please check with starting fluid first if the cutoff is fine. if it runs then its still a fuel problem since you have verified spark. if it doesn't run, check the compression.
do not replace the pcm until your diagnosis leads you there
edit: verify that fuel is flowing through the injectors and that havent been seized. im not sure what water will do, if it could plug the screen or seize them.