Danbor37

Hello all, I’m very new here in fact this is my first post. I have a 2008 Silverado 5.3 liter. I had 250k on old motor and bought one on eBay with 93k to do a swap on it. I did all gaskets from top to bottom front to back. I have new spark plugs wires and used the injectors and crank sensor that came on the motor. My issue is i have a p0300 code and don’t understand why? Are the injectors not recognized by pcm or is it the crank sensor not recognized by pcm or both. I have a dinky scan tool from Amazon and have readings. Need some help! Asap as if the motor is bad I can send it back for full refund.







All in order how the scanner reads just can understand all of it