<<I am not sure about Porsche, but on the Mercedes it has a circuit to detect > ignition pluses and turns off fuel pump if engine is not running.
<<So do the ones in my 1970s Saab 99s. They fit in a standard five spade relay socket. Want me to check Bosch part numbers?>> Porsche part #993 615 227 00. Six spade connectors to two relays in one housing, one controlling the second. RLE
