Trent89

i am wiring up obd0 to obd1. i have already wire up 4 wire o2 sensor and knock sensor. i dont have to use iab or vtec wires cause i have a b20.

i dont know what to do with a23 black, pink, and brown wires? the diagram that came with my obd0 to obd1 jumper is below.

4drEF

EDIT -
Reread your post.
Seems you wanted how to wire them properly to STOCK location.
A-23 goes to the stock OBD0 A-2
B-2 goes to the stock OBD0 A-18
A-26 goes to the stock OBD0 A-16

89 SI zero

where did you get the jumper and diagram from?

Trent89

i bought the jumper off ebay. it was like $40

89 SI zero

whats the brand, is it quality? I'm thinking of going b20 also.

Trent89

so i just splice into those pin locations and im done?

4drEF

Honestly, your jumper sounds weird.
They should have been hard wired to the proper pins on the OBD0 plug already.

Trent89

all those wires are whats coming off my ecu jumper to add the necessary things such as vtec, knock, o2, iab, etc... are you saying that the black,pink, and brown should not be coming off the jumper?

4drEF

I'm saying the black, pink, and brown should be hard wired in the jumper to appropriate connector pins.
They shouldn't just be dangling there like the vtec, knock, iab, etc.

Trent89

so if i splice them into the proper wires, wont it be essentially the same thing?

4drEF

yes.

F22Master

I'm with 4dr, something sounds weird. Those three wires should already go from the OBD1 plug to their proper pin on the OBD0 plug. There is no reason for them not to be already wired. That is the point of a conversion harness...

The only ones that should NOT be pre-wired are: O2(4 wires), Vtec(2 wires), Knock, Iab, and your CEL wires(2)
That's 10 wires.

Trent89

this is the harness i bought

http://www.ebay.com/itm/ECU-Conversion-Jumper-Harness-for-1988-1991-Honda-Civic-Acura-OBD0-to-OBD1-/221148017931?pt=US_Car_Audio_Video_Interconnect_Cables&hash=item337d72f50b

swordofdoom

Some of the cheap knock off harness have actual wires coming out of them and they are also wired up in line.

Trent89

am i supposed to have b2 black hooked up to o2 sensor and spliced into obd0 a18?

4drEF

B2 has nothing to do with the O2.
It is logic ground for the CYP and TDC sensor in the distributor.

there is no additional splicing - simply just B2 to A18.

Trent89

thank you for all the help you have given me. i have b2 also hooked up to the o2 sensor because it says it on that diagram i was given. so what is the 4th wire that i use for my o2 sensor if im not suppose to use b2 for my 4 wire o2 sensor? im using a6, a25, d14, and b2 currently for my 4 wire o2 sensor. i got my car started up tonight for the first time and it wasnt throwing any CEL

SpokaneSpeed

Looks like you're using the Empyrean harness... If so, you actually don't need to connect these wires at all - they get their power/ground already through the harness. Just an example of a cheap copy jumper harness.

If you have any questions, PM me. We've installed a bunch of these.