Oh sure, some of us know about this valve. I just don't happen to have the fuel line schematic handy.

But I don't recall if it diverts fuel away from the IP when energized or deenergized (although I strongly suspect the latter). Essentially, it starves the IP when the key is off. I imagine it's to prevent a sticking rack from keeping the engine running, since the rack can fully shut down the fuel delivery as well (and does so on overrun).

The temperature sensor measures the fuel temperature on its way into the IP.