So I was driving my 87 Volvo 244 when all of a sudden it died. Not a big deal, took it to my local auto parts store and they diagnosed a bad alternator. Replaced the alternator and thought everything was fine and dandy. Not the case at all. Ever since I replaced the alternator, my car will not stay running for the life of me. I've tried jumping it multiple times with a jump box and it will stay idoling while the jump box is connected. As soon as I disconnect the jump box it will sputter out and die. While trying to pull the alternator out I did rip the Oil Pressure Sender wire out but I did rig something up that I think works. (The Jerry rigged OPS is the black wire with a yellow butt connector on the end of it). The other blue connection was not connected to anything when I originally pulled the old alternator out and I am not sure what it is for. (Below are pictures of the alternator wiring setup) https://imgur.com/a/2YJF4TV
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