Does anyone know where I can get a jumper to hook an OBD1 wiring harness up to an OBD2a ecu? I've been searching and all I can find are OBD2 to OBD1 jumper harnesses...

I'm putting a B18B1 into a 92 civic si and I'm wanting to use the stock shock tower harness.

 

We sell the harness you are looking for on our website.

I recommend you get your self an obd1 p75 ecu or a chipped obd1 non-vtec ecu.
It will cost less then the obd1 harness to obd2a ecu jumper you are trying to buy.

 

^ Best advice - use an obd1 ECU. If you don't want to go that route, we can have one made for you for a reasonable price, just PM me. But beware using an OBD2 ECU you are going to have problems with check engine light for no second o2, CKF, evap, etc..

 

I didn't realize that an obd1 ecu would work fine with an obd2 engine... If that's the case, my job just got cake, lol.

 

Yes, it will work perfectly fine :-)

 

ok sorry to thread jack but i have a lsv motor that is obd2 with a obd2 harness with a obd2 to obd1 jumper with a chiped p28 and i have a check engine light with i dont know how to read because a scan tool doesnt work and i cant find the little jumper to make the cel blink help!

 

Read http://www.phearable.net/tech/
"How to check your MIL codes (Check Engine Light): "