You're trying to open a larger can of whoop-ass than you know.
Do you have an OBD2 code reader? This is what you need to get started.
How long has this car been sitting?
Alright! This fuken site r0ks! 0K s0 my linc0ln been sittin since like s0me time right after c0vid happen. As t0 me having way 2 much spare time in my hands. I remmember i unb0lted my st0ck exhaust manif0lds al0ng with the cat because i was under the impression that they were getting t00 h0t because i thought they were all cloged up. S0 i b0ught new aftermarket hi fl0w type 0f thing, anyh0w, i f0rg0t t0 unb0lt my battery terminals. S0 the 02 sens0r hit something 0n its way 0ut. Cuz i heard a spark. After that day i havent been able t0 fix whatever electrical issues it must have. Neither c0uld my electriti0n. Plus i use it f0r h0ppin. S0 2 me under d h00d d0nt matter. As l0ng as it can drive itself t0 the h0pps every weekend. Hey man thanks 4 ur reply and ur 0ppini0n