Replaced the ckp on the engine and still have the code and car will not start

Fault codes never say to replace parts. They only direct you to the circuit or system that needs further diagnosis. Most crank sensors have a 5.0, 8.0, or 10.0 volt feed wire, a ground return wire, and a signal wire. The feed and ground wires can be common to multiple sensors. Some crank sensors use only two wires. They still work magnetically but a pulse of voltage is induced directly into a coil of wire and there is no other circuitry to amplify the signal like there is in the three-wire sensors.

While it's true you will indeed find a defective sensor at least 50 percent of the time, you are just as likely to find a corroded splice, cut wire, or stretched or corroded terminal in a connector.