jdmcivic1999

I need help, i've done research and cant find anything that helps. I have a 1990 skyline gtr which is having issues starting. When you try and start the engine with the key, the engine gets no spark to any cylinder and just cranks over. When you pull the crank/cam sensor off (and leave key in "on" position) and manually turn it, all cylinders get spark. I've tried it with 2 separate CAS

What would cause this? I've replaced, igniter pack, CAS senson, and spark plugs

Thanks