The hose material used in the short section of the high pressure fuel line hose, between the fuel rail and fuel pressure regulator, is subject to hardening, and could cause fuel leaks between the hose and the metal pipe fittings.
Risiko: Fuel leaks could ignite on the hot exhaust system, or any other source of ignition, resulting in an engine compartment fire.
Abhilfe: Replace fuel line hose with hoses made of improved material.