I have a 91 integra RS. Obd 0 engine harness with a conversion harness at the ecu for obd1.

My issue, Car wont start, I boosted it with another battery it starts as it would on a cold start, and then the rpms slowly drop lower and lower until the car dies. I changed the alternator 3 times, to one which im comfortable with to rule out any alternator issues. Dont know how the charge harness works, anyone got any insights what may be causing my issue? I monitored the voltage on battery as the car was on, it kept dropping quite drastically. As if the alternator charge wasnt reaching it. If you have any insights or experienced anything similar please send me some input.

I was thinking it could be a lack of a great ground, but am not 100% sure that is it just yet.

I know the alternator is putting out voltage from testing the lead going out of the alternator.Just need to know where the wire goes so I can look for cuts in the wire or w.e thanks.

 

Figured the issue followed the charging harness across there was a break in the line. I set up a fuse section to join 2, 4 gauge wires together, and the wire came apart. I didnt install it but its alright the beast will be running tomorrow and I pray no issues as I drive to work. Didnt even get to test drive it to see if shes ok lol..