Engine will not start after air intake manifold gasket replacement?

The first thing I would do is make sure the electrical connectors are plugged in completely and check for any ground wires that have been left off or are loose when doing the repair. Next, let's check all fuse with the system on.

This guide can help:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If all fuses are good let's run the codes to see what comes up.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please go over these guides and get back to us.