2004 Corolla - Crank, No Start

#1
I am an ASE Master L1 tech car cranks but no start 2004 corolla ce had code p0341 cam sensor. it checks good the cam sensor pressure valve also checked good.its in timing . getting fuel. no spark. no voltage to coils for spark, checked the wiring its good. replaced ecmwith another ecmout of the same year model car. still same thing when i disconnected the battery to replace ecm no code there anymore the cam code is a immiate code that comes on when something is found to be wrong. does anyone have an idea i dont know where all engine grounds are but i seen three please if anyone have an idea let me know. ive been working with this car for 18 hours. i will appriciate all help and advice thanks
 
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