I changed the number 27 fuse and now it starts but the AC doesn't work now... Getting code PO354?????

 

The code and the a/c are not related. P0354 means there is an electrical issue associated with coil -D, which I assume is for cylinder 4.. Try swapping that coil with another cylinder and see if the code changes. Bad spark plug for # 4, wiring issue with the primary side of the # 4 coil, manifold vacuum leak affecting that cylinder are some things to check. I don't know what fuse 27 is for but it could have blown again, cutting power to the a/c field coil. If the a/c worked before fuse replacement, check other fuses as I would believe an electrical issue exists for the a/c. I hope you disconnected the battery before you worked on it or you could have created new issues.