You need to remove the fuel injector sight shield, install the J 34730-1A to the fuel pressure service connection, located on the fuel rail, then turn ON the ignition, place the bleed hose of the fuel pressure gage into an approved gasoline container, bleed the air from the fuel pressure gage, command the fuel pump ON with a scan tool, then close the bleed valve on the fuel pressure gage, lastly inspect for fuel leaks.
By BobGM Specialist
29/10/2022