It looks like the engine control relay provides the power for both cam sensors and the
crank sensor, along with injectors and coils. Start there, make sure that you have 12
volts in the power wires of those components with the key on and no volts with the key
off. The ground and signal wires for the cam and crank sensors are seperate. The
power wire is the only common denominator. That is where your problem most likely
is.