interior harness question

im not sure if this has been answered ive searched for the last 2 weeks before i commit to trying to do it i have a 91 integra gs shell well it wasnt a shell i bought it not running but the previous owner did a hack job wire tuck so the engine harness and interior harness is trash and is being semi pulled when i have time. cars completely apart. i have a 92 integra interior harness and engine harness. will this be a direct fit into the 91? ive had people tell me that some plugs arent the same for the fuse box and fuel pump can anyone clear this up for me?

just re pin them. If you have all the correct sensors, Do a side by side comparison.

They are not the same, you can make it work, but depending on the specifics of your car it would likely be too much work. If you’re stripping to a bare shell and rebuilding a custom car then it wouldn’t be too bad, but if the car is even relatively stock it won’t be worth the hassle. Match the harness to the car (year and trim level) and make your life easier.