2G Engine won't start p0335

[caseyty13]

So I rebuilt my engine. It's a long story for that. Go to start it and it won't start. Cranks but won't fire. It threw a p0335 code for the crankshaft sensor. So I replaced the sensor. And tried to start it and it won't start and threw the same code. Checked the wiring and there is no sign of damage at all. The thing is my battery light is on and so I think the alternator is bad. Could that be causing the sensor to trip and not work right. Or what else can be causing it

 

[pauleyman]

Check the harness end. I want to say cps and ac are similar.