YumVTEC

I have OBD1 ECU plugs with 12" of wiring from the wrecked 1992 GS-R that I bought a while ago. I am trying to make my own DIY OBD0-OBD1 with those plugs, and the female plugs from a junk DPFI OBD0 civic ECU. I have seen conversion charts on how to wire everything up, but the wire colors are sometimes different on the charts (which I assume are obd1 civic wire colors) than what I have on m OBD1 GS-R plugs. Also, I have a few extra wires on the obd1 plugs that are not listed on any conversion chart that I've seen.

does anyone have an P61 ECU pinout with the 1992-1993 GS-R wire colors listed with their appropriate pins? I need that and I need the obd0 civic pinouts as well, so I can make my own conversion chart and get this thing made.

i've made my own obd2b to obd1 conversion harness, and it wasn't too difficult, i just don't have the correct information to do this project right apparently. i have the 90-93 Integra service manual, but I can't find a chart of pinouts with wire colors for the ECU.

HELP!!!

bossman032

hmm I have the OBD1 GSR 94-95.

let me know if u want it..

YumVTEC

what obd1 ecu plugs are you using? yeah, if you have the ecu pinouts with wire colors for the 94-95 Integra GS-R, that would be great.

civisaurusrex

i have pinouts for the pr3-pw0, the p28 and the p72 listed by pin number, wire color, and what the wire is for. all the obd1's have the same pins in the same places for the same things and most of the colors are the same. i'm actually working on the same jumper, if i can ever get some extra free time to do it. right now, i'm running my d16z6 off a pr3, and i want to run it with the p28 i have sitting here (which i also need to put the chip in that's sitting here). what engine are you running, and what wiring harness do you have on it? you'll have the best luck if you run the distributor that matches the obd version of your ecu, which could mean changing plugs on your harness or dizzy. let me know what how you're doing.

Davep

Only go by pin outs on the connectors. Never go by wire colors because these change slightly from car/year.

YumVTEC

i'm putting a 92 b17a swap into my 90 EF hatch, using the Civic harness on the motor and splicing plugs where necessary. I know I have to run a few extra wires through the firewall for VTEC Solenoid, VTEC Pressure sensor, Knock Sensor, 4-wire Primary O2. Is there anything else?

civisaurusrex: can you email me your pinouts with wirecolors for the three cars you mentioned? send to yumvtec@hotmail.com

Thanks guy!

-T

P.S. I know you have to use the same distributor to match the ecu

YumVTEC

bump

fourthgenhatchB17

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by YumVTEC &raquo;</TD></TR><TR><TD CLASS="quote">i'm putting a 92 b17a swap into my 90 EF hatch, using the Civic harness on the motor and splicing plugs where necessary. I know I have to run a few extra wires through the firewall for VTEC Solenoid, VTEC Pressure sensor, Knock Sensor, 4-wire Primary O2. Is there anything else?

civisaurusrex: can you email me your pinouts with wirecolors for the three cars you mentioned? send to yumvtec@hotmail.com

Thanks guy!

-T

P.S. I know you have to use the same distributor to match the ecu</TD></TR></TABLE>

I am running a B17 in my 89 hatch DX. I have also converted to OBD-1. I think i saw that u have a 90 hatch std., and if so, u will need to convert to MPFI before anything. You will not be able to use the wiring harness off the B17 motor, as it will not plug in to the underdash harness near the pass. side shock tower. After u convert to MPFI with your std. engine harness (or u can just buy a SI harness), u will need match all the colors up for the distributor on the civic harness to match the ones on the new GSR obd-1 distributor. Then u SHOULD (u dont have to) solder in the OBD-1 injector plugs so u can use the OBD-1 injectors. Then u will need to add the wiring for the 4 wire O2 sensor as well. Im tired of typing so i will stop now but let me know if u know this stuff already.

YumVTEC

fourthgenhatchB17: the car is already converted to MPFI. it has a d16y7 with a d16a6 intake manifold, throttle body, ecu, distributor, and injecotrs.

did you make your own obd0 --&gt; obd1 ecu jumper harness?

fourthgenhatchB17

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by YumVTEC &raquo;</TD></TR><TR><TD CLASS="quote">fourthgenhatchB17: the car is already converted to MPFI. it has a d16y7 with a d16a6 intake manifold, throttle body, ecu, distributor, and injecotrs.

did you make your own obd0 --&gt; obd1 ecu jumper harness?</TD></TR></TABLE>

I bought the one i am using but i have made a few, since i have one to copy.

YumVTEC

do you have a conversion chart I could borrow?

Jaker

Like someone else already mentioned, don't go by the wire colors, go by the position of the pins in the connector.

fourthgenhatchB17

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by YumVTEC &raquo;</TD></TR><TR><TD CLASS="quote">do you have a conversion chart I could borrow?</TD></TR></TABLE>

Only chart i have would be the conversion harness itself, and thats plugged in on my car.

Davep

http://www.boosted.org/obd0_to_1.php

This one is right.

YumVTEC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Davep &raquo;</TD></TR><TR><TD CLASS="quote"> http://www.boosted.org/obd0_to_1.php

This one is right. </TD></TR></TABLE>

thanks for that, have you used it?

Davep

Yeah, truE and I came up with it.

EFSiR

thanks for the chart!!!!!! it works!!!!