So you have a code that is coming up in a scanner?
Why was the plug and coil replaced?
Have you made sure everything is plugged in and was any other work done prior to the issue that may have resulted in this issue?
When I say other work I mean intake manifold gasket or something that would have required stuff to have been unplugged or removed and possibly cause an issue.
My guess would be a ground or power issue and that would require some electrical troubleshooting.