Hello, I'm trying to replace a jumper harness back to oem obd1 plugs but the colors don't always match up. For example A1 isn't brown it's yellow with red stripes. There are also a bunch of extra wires and this extra connector that has been spliced into the oem wiring and A26 leads to one brown/black wire and one solid brown wire that leads into that connector and then to the bundle in the picture. I'm also having a strange issue with the blinker fuse. With the fuse in and key on the fuel pump doesn't stop priming and just keeps running. If I crank the key after the prime is supposed to finish the car has problems starting but will eventually start and run. If i crank the key right away the car will start and stay running and drive semi decent. If I take the blinker fuse out the pump will prime like normal and the car will also start, but run like crap and using the blinkers or hazards makes the lights dim in sync with them. I looked up pinouts and read a few obd0-obd1 install instructions but I couldn't figure out which wire the blinker was. Or what to do about the spliced stuff. The gas gauge and temp gauge also don't work and I'm wondering if this would have anything to do with that as well. Am I physically going to have to use a meter and check every single wire on the car? My time is limited so there has to be an easier way. I really have no clue as to where to proceed from here. Any help would be appreciated.

The car is an 89 civic dx hatchback with a 95 b7 and z6 head. Chipped ecu.