Keeping it simple...I bought a 2005 aveo with a bad t belt. Someone else disassembled the locked up motor.I removed the bottom half and installed a tested used motor.Car runs terrible. I'm lost. Hold and cel is flashing. Are relearn procedures needed? I can't pull codes but I have a slew of spare parts.I can unplug the 2 injectors closest to the timing belt and it runs the same. Tried replacing the injectors with no luck. I also swapped torque convertors. Doubt that matters.