I was wondering if anyone knew how to wire a Grey plug 1993 B18A into my friends 88 Crx Si..

Any help would be greatly appreciated
Kevin

 

Get an OBD-0 distributor and use the 90-91 teg ls or gs ecu with the crx's stock O2 sensor. The rest of the sensors will plug right in....

Rob

 

Is there any to wire up what I got, with the 93 Distributor, and ECU?

 

Bump, Anyone know?

 

Yeah, you'd have to convert to OBD-I.

 

Would swapping sub harnesses work?

 

You are making it more complicated than it is.

You have two choices that make the wiring SO easy.

1. Get a 90-91 ECU (PR4). Get a 90-91 Distributor (white plugs). Take your Si harness and plug it into your B18a.

2. Get a Conversion harness from Blown90Hatch($170). Get a 92-95 LS ECU (P74 or P75). Follow his instructions. Re-Pin your grey plug distributor (not as hard as you think). Plug in your CRX Si harness to your B18a.

This is generally how you can do things. You will most likely run into small problems along the way though. Count on it. We all do.

 

Actually, a 1992-1993 ECU is a PR4. Not a P74/P75. Those did not come into the picture until 1994. As for the wiring conversion, you could also do it yourself. I posted wiring charts some time ago on resource.crx.org. I am not sure they are still there. But there are other places to find such charts (Hasport, etc.). Rewiring is preferable to using 1990-1991 stuff because (1) you already have the 1993 ECU and don't have to buy another ECU AND distributer, (2) the motor will run better and make more power with an ECU tuned to run it rather than one tuned to run a motor with 10 less HP (specifically, the 1990-1991 Integra PR4 ECU), and (3) if you live in California, you will be legal.

 

just use th 90/91 teg dist and the 90/91 ecu it requires the least thought. Theres no advantage to the 92-93 dist anyway??

 

Every one is right.....

Hondata says both... weird
I have a PR4 and it has OBD1 connectors


http://www.hondata.com/vehicles.html
http://www.hondata.com/techecuid.html

Integra LS/GS 92-93 US B18A PR4 P74,P75,P06,P28,P30,P72,P61 2,3
Integra LS/GS 94 US B18B P74 P74,P75,P06,P28,P30,P72,P61 2,3
Integra LS/GS 95 US B18B P75 P74,P75,P06,P28,P30,P72,P61 2,3
Integra LS/GS 96 US B18B PR4

 

As with many things that require the least thought, this route also produces the least results. And it's not because the 1992-1993 distributer is better. Rather, it is because the 1992-1993 ECU is better. The 1990-1991 B18A produces 10 less HP than the 1992-1993 B18A. Cams are one reason for this. But the ECU is another. Honda most certainly tuned the 1992-1993 ECU to take advantage of the better cams used on this motor. So if you go with the 1990-1991 ECU, you not only find yourself shelling out to buy inferior goods. You will also get less power.

 

Well I'm asking this question aobut a friend, whose car I'm helping with. He INSISTS on swapping sub harnesses, so essetnially he'll have an 88 CRX with OBD I, but whatever floats his boat.... But this will work, correct?