It is certainly worth a try, but read my previous post...apparently if the speed sensor is not engaged (fly wheel turning), your fuel pump won't be turned on, so that's that....you'll only get a squirt....not sure how to trouble shoot that one....unless (see below):
There is a write-up on here for fixing your own fuel pump relay as well as how to jumper the base connector without the relay on earlier cars (850-70 series) but not sure if yours is the same relay or not. Take a search in the repair database section and when you find your relay, compare it with what is posted there. If yours is the same, then it might be worth a try to problem shoot things further.
Of course, if the relay is not the same, I wouldn't dare try to jumper the connectors as you could do some real damage.
UM....once again CHECK YOUR BATTERY....without any pull on it, it should read between 13~14 Volts, not just 12.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
94 850 Sedan NA Drk Blue/Tan
'00 V40 Purple/Grey Mobil-1