Sorry for the wall of text, but I'd rather post my trial and errors before I'm asked questions I already know the answers to. I'm still learning about the 89 integra and ****... usually work on chevys T_T
CLIFFNOTES @ END
So lately my cars charging system was acting up, I decided to replace the alternator since the voltages were low (I had an extra alternator lying around that I'm 99% sure was in perfect condition) and the belt in it.
Well now the car runs, voltages are fine... I drove it to work one day but at the end of my shift I went out to the parking lot and it didn't turn over. Jumped it and made it home. I tested the voltages and the alternator is fine, it's charging but when I tested the battery with one of those test lights, I had a battery drain, so I unplug a bunch of fuses one by one... nothing. Took out my aftermarket radio just to be safe, and unplugged a bunch of crap, still a battery drain.
Jumping back about a year, my engine died so I replaced it with a new engine that came out of an '89 integra with an auto tranny. The wiring harness also came with the engine, so I installed that along with the engine swap I did....So I had this hunch that, since I'm using a wire harness that came from an auto transmission, that I should probably use my old MT one, then maybe I could get reverse lights! and maybe it could somehow solve this battery drain. Well, I installed it... no reverse lights lol, and still didn't fix the battery drain. So I stared under the hood for a while, thinking of what the **** could possibly cause this drain. well I opened up that black box above the PGM-FI and unplugged the two cables that are screwed down... voila, the second cable is where my battery drain is coming from.
Also I have code 4 (crank angle sensor) on my ECU if that is in anyway shape or form related to anything discussed here... but the car runs perfectly fine, beautiful actually.
So i'm getting a battery drain from the "bottom" cable in that black box.... it's for the fuel injector right? I have no idea where to go from here.
I'm currently driving my car since it's my only vehicle, downside? I have to unplug the battery after each trip so the batter doesn't die not funny to me actually, I dislike driving unsafe vehicles
Also note: After installing my "old" manual-transmission wiring harness, my blinkers dont work, along with my tachometer, temp gauge and gas gauge. So I will triple check my connections, even though I think they are fine, or probably just go back with my AT wire harness.