Originally Posted by
ddewhurst
***IIRC, the firewall rule is only for cars with a fuel cell.***
Not true, reread the rule you posted.
***an exposed gas tank, fuel cell, or part thereof,***
Including a filler hose, filler tube or whatever else which is part of the OEM fuel tank/fuel cell.
As I read Jonathan's post (However in the sedan right now it is running the stock fuel system and no fuel is even routed through the trunk or cabin, no filler neck, no hose, our other cars have filler necks and the such, but this car is ALL external.) he needs nothing between the driver & the exposed gas tank, fuel cell, or part thereof because he has none of those items exposed.