Ls in 91 dx hatch?

[tekno9998]

Ok i got my new project 91dx hatch today for my wrecked 97 hatch it came with crx si seats, rear discs, and i just purchased a 91 ls b18a1 engine with mounts, ecu, wiringharness and a t3 turbo kit minus injectors and safc. I was just wondering what if any modifications to the wiring harness will there be to mate the ls wiring harness to the 91 harness and to the pr4?

[kris]

Which harness did you get? Is it the B18 OBDI or OBD0?

Also, you are going to either make your own custom harness, to rewire your DPFI harness from ther DX, or purchase one.

Also, which mounts came with it? Are they OEM integra mounts, or 4th gen b series mounts?

I assume you got the tranny too? If not, you will need one. You need new shift linkage, and axles.

[tekno9998]

I have the b18a1 origanal harness i dont know if it is obd0or obd1 is there anyway to tell? And as far as making my own or modifying the dx harness could youpoint me in the right direction or maybe a site were i can purchase a harness? And it has custom mounts made by the guy who lsod it to me he had the engine in his 91 crx and it does have a tranny its cable and i have the axles and shortened shift linkage the only thing holdoing me back is the harness.

[kris]

If it was in his CRX, it is probably OBD0. A quick way to tell is to look at the plugs. Are they Grey, or a brownish, milky white?

[tekno9998]

The plugs are a milky white and there is a sensor in th exhaust manifold so that would be obd1 right?

[Problem_Si]

if the motor came from a 90 or 91 integra, then it is obd-0. in 92 they switched to obd-1, and changed from cable to hydro tranny.

the easiest way to tell if its obd-0.....take your stock ecu, and see if the plug matches up.

[kris]

Well, they didnt switch to hydro until 94. But I'm sure he doesnt know what year it came out of.

But yeah, the milky white plugs are OBD0.

Check on www.4thgenerationcivic.com for the DPFI-MPFI changeover.