multiple codes which include, P0324, P0326, P0327, P0328, P0172, P0501, P0A4A, P0C47, P07E8?

I recently did a engine swap on my buick encore. before putting the motor in i did a code reading on it to ensure the motor was in good condition which it was. after the install my buick started and ran but its running rough. idle is rough, belt is squealing, and there is some hesistation when accelerating along with a strong smell of gas. I hooked up the code reader to find multiple codes which include, P0324, P0326, P0327, P0328, P0172, P0501, P0A4A, P0C47, P07E8. i started with replacing the knock sensor and deleted the codes and reran the code reader with similar but different results. now the codes include P0324, P0326, P0328, P07E8, P0A4A, and P0A47. I did some research into them, with the knock sensor being replaced im thinking its a connection issue rather then the sensor itself. the other codes kind of give me the thought of poor communication or connections as well. It seems the ECM, PCM, and possibly the TCM may not be signaling god or one is faulty. Im looking for input and second thoughts. I also dont want to go buy parts without finding the most likely issue but not sure how or where to start. I also must add the battery light is on but battery tested good and the alternator is showing a charge at 13-14 volts.