I got a full long block and tranny. No axels or ecu.

I know I'll need integra axles (no biggie)

Gonna order the Hasport mounts and shift linkage (no biggie)

Already know I got to change the timing belt and water pump and any other easy to get to gaskets (once again, no biggie)

Questions are, what ECU to use? I checked on Hondaswap and they are listing a p74 with obd-1....everywhere else i read, the b18a1 is obd-0.

Input please...

 

If you have a 1990 or 1991 LS engine, it would normally utilize a non-OBD ECU like the Integras that those engines came from. A 1992 or up LS changeover uses OBD components... The 1990/91 non-OBD swaps are the easiest for our cars.

 

you use a 90-91 PR4 ECU make sure its obd0 because there are obd1 pr4s (92-93)

I run a 91 PR4 ECU on my rex, it should be plug and play with you since you have an SI just bolt in the b18a plug up the 0bd0 PR4 and you're ready to feel some 4 banger torque

 

use an ecu from 90-91 integra pr4 obd0

 

Ok, let's say the engine iis from a 92-93 (unsure cause the buyer doe'snt remember), would it hurt it to run obd-0?

(Thanks for all the help so far)

 

nope, it will be fine running it under a obd0 ls ecu

 

yea just make sure that your dizzy too is obd-0... but yea obd-0 PR4 ECU is what you should use... basically just plug and play...

 

i got a 95 b18b in my rex swaped the manifold w/ tb and bolted up a obd0 dizy and im using a obd0 pr4 ecu and it runs mint

 

okay i have an 88 CRX Si, and i want to do the LS swap, i have an 1990 teg engine tranny axles ecu hasport mounts and there shift linkage. so basically i just need to put the mounts on and drop the engine in right? so what about the wiring? does the D-series engine wiring harness just plugs up to the sensors on the B18A?

 

very cool now i dont have to worry about switching to obd1.

 

hey i have a crx hf with a b18 in it, the nonvtec ls. I was wondering if the stock d15 harness will work or what wiring i need to use.

 

^^^the hf harness is fine.. just make sure you use a non obd dissy..

 

Well, the stock harness from the crx is fine, i used it b4, and i am using the stock dizzy and ecu that go on the motor....

 

i do believe they are obd 0

 

i put the harness on the motor and ended up having a big problem. The distributor isn't getting fire.... No one is able to tell me why. If anyone had any guesses let me know. Keep in mind the dizzy is brand new, ecu works, and all 3 grounds are on