My 97 has the stupid RSR (radio suppression relay), if car has this, with a helper, I use daughter these days, have helper turn key to on position, while helper does this make sure you have 12V going to the RSR. Do this a few times to make sure you got consistent power to the relay. Of course the RSR relay should click which tells you it is sending juice (electricity) to the fuel injectors. Not sure which color wire that would be, but try a couple of them with that new digital multimeter you got. Figured all this out with my 940 and noticed my 97 850 had the same set up. Good luck.
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