Welcome to JustAnswer, my name is Dan and I'm here to help get your problem resolved. Remove the fuel pump relay from fusebox under the hood and run vehicle until it stalls, this will relieve most of the fuel pressure. Then use a line wrench to remove fuel line from fuel pressure regulator. Here are instructions from manual and a picture of a line wrench. Let me know if you have questions or if there is anything else I can do to help. Thanks.