S13 KA24de. Running extremely rich! Any Ideas???

[DrSumtingWong]

I really need some advice please! I built this S13 from the bottom up starting with a shell I had laying around from an old SR swap me and a buddy did. Had the car running beautifully for 2 days till I slid into the back of my retarded shortstopping in the rain X girl friend. I only hit her at about 5-10 mph but I didnt have a my bumper support in. Support was thrown away by friends d!ck dad during previous SR swap. Motor didnt take a hit really but im guessing I must have some sort of wiring issue since my KA is running extremely rich and sounds like my buddies Chevy 350 that has perfomance cams and no exhaust. Compression checks out perfectly. I have replaced air flow meter which took the worst hit, didnt help. Cap and rotor, wires, plugs. Replaced my coil cuz spark appeared weak, Temp sensor replaced. I pulled the distributor to make sure it wasnt damaged. Low level knock sensor replaced. Throttle position sensor checked out ok. Tried 2 other ECUs. Replaced Main Harness with Used 1 that I pulled and Inspected. Replaced Sub harness as well. Prolly a couple more things Im forgetting. Im thinking about replacing my body harness which is a real pain but not sure if it even contains any wiring that would be causing my issues and cant find any good diagrams. Any Advice would be greatly appreciated.