How do you remove the wiring harness on a 1998 Toyota Avalon Valve Cover Gasket repair.?

To remove the wiring harness for a 1998 Toyota Avalon during a valve cover gasket repair, first, disconnect the negative battery terminal to ensure safety. Carefully unclip the wiring harness from its mounting points, making note of any connectors or brackets that need to be removed. Gently disconnect the electrical connectors from the ignition coils and any other components attached to the harness, ensuring not to pull on the wires directly. Once all connections are free, you can safely move the wiring harness aside to access the valve cover.