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- #21
There should be a switching valve next to the front tank where the two sets of fuel hoses (feed/return) are connected to then one feed to the engine. I think on mine there is just one wire at the switching valve, try and follow that wire, I know that will probably be impossible but maybe by getting the color of that wire you can then check the colors of the wires going to any unmarked switches in the dash. Does the second tank look factory?
Second tank and all appurtenances are factory.
Should there be two switching valves?