I have a 91 Integra LS 5speed...and I need a new chassis harness, is it different than the 90? I heard it was I heard it doesnt matter does anyone know?!

 

no,

 

I wouldn't think that it'd be too different, if at all

 

doesnt matter 90 and 91 same.

 

Yeah there difference, the wiring going from the fuse box under the dash to the rear lights,fuel pump, etc. has some wiring diffeences. like the way the grounds are run and a few other differences, also it the main harness and the rear wiring harness have an extra plug that the 90 does not, it's a single wire plug that is also on the 92-93.

I actually just bought a 90 from someone and the wiring inside was fugged up, so I redid all the wiring by taking it from a 91 that's how I realized that the there was a wiring difference. If you get all the wiring from the same car you should be alright. If I had pics I would show you.

 

I need help/knowledge installing one of these chassis harnesses on my 91 DA, can some one help?

 

I'm almost positive that the 90-91 are the same, the 92-93 however, are different.

Edit: 2 posts before me (superls92) has hands on experience with said wiring, don't listen to me lol.

 

90-91's are the same....regardless, same OBD same everything.

If it had extra wiring on his new harness, its probably because it needed to be there in the first place.