To hack ldp I would replace the line to to tank with one or possibly 2 y connected together small sealed bellows like used as vacuum actuators for some climate control air doors
The small sealed bellows will act like a much larger sealed air resivour that has flexible rubber lines but no leaks. The system cannot be very picky if it is ok with air volumes varying from a nearly empty to a nearly full tank
Course you would also need a vented gas cap
The small sealed bellows will act like a much larger sealed air resivour that has flexible rubber lines but no leaks. The system cannot be very picky if it is ok with air volumes varying from a nearly empty to a nearly full tank
Course you would also need a vented gas cap