Fuel System Pressure Release
WARNING: This page is about a different car, the 1996 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
Remove negative battery terminal. Remove fuel tank filler cap. Locate 6-mm service bolt on fuel rail. Place clean shop rag around service bolt. To relieve system pressure, slowly loosen service bolt one complete turn while holding banjo bolt with another wrench. Always replace washer under 6-mm service bolt after loosening.