97 deville want start

my 97 deville turns over but want start..im getting spark to the plugs, and fuel pump and flow are fine... i checked for codes on dash no current codes... some one said check anti theft device but i don t know now or how to fix it if it is the problem HELP PLEASE.....

Do you have strong blue spark and injector pulse ( you don't know this) nor how much fuel pressure also unknown, correct? Again fuel and spark it must run assuming no internal engine failure, spray carb cleaner or a little starting fluid into the intake and see what happens. Vats will not allow the engine to crank if it was a security issue. Also check fuel presure at the rail.

i tried quick start in intake but it makes no differents