stoped at auto zone and they ran a check on the E350 ,code was p0191
engine runs good BUT I found 2 metal vaccum pipes that are joined
to gether with a rubber hose near the fuel filter, the rubber hose
was burned real bad,replaced the vaccum hose with fuel line hose,
the hose receives a lot of heat from the left exh pipe,,I also have changed the fuel filter now I need a test run 200mi plus
