Will OBD2A wiring harness work in an OBD2B car?
 

Hi Honda-Tech, hopefully someone here can help me.
I have a 1999 civic with a JDM Type-R. The car is running on an OBD1 ecu with no jumper harness. My engine harness and dash harness is all hacked up so I am going to replace it with the proper wiring. I bought the correct dash harness (obd2b) but the engine harness I got is OBD2A. So my question is, will the obd2a engine harness work with the obd2b dash harness? If not, what do I have to modify to make it work?? I hope that I can make it work because I also bought a jdm type-r ecu which is obd2a, that way I wouldnt have to get a jumper harness.

Re: Will OBD2A wiring harness work in an OBD2B car?
 

A civic obd2a engine harness will not work with an obd2b dash/interior harness.

Re: Will OBD2A wiring harness work in an OBD2B car?
 

Anyway to mod it? I can't find a obd2b engine harness

Re: Will OBD2A wiring harness work in an OBD2B car?
 

did you ever figure it out? Im in the same situation right now.

Re: Will OBD2A wiring harness work in an OBD2B car?
 

it's a major, MAJOR pain in the ass to mod an obd2a engine harness to match an obd2b chassis harness. it shouldn't be that hard to find an obd2b engine harness, the only thing I don't think will match up is the dizzy plugs which you can just re-pin, splice, or get a jumper for.

Re: Will OBD2A wiring harness work in an OBD2B car?
 

There's a lot more different than the dizzy plug. The ecu plug configuration, pin outs and chassiss harness plug wiring are all different.

Re: Will OBD2A wiring harness work in an OBD2B car?
 

it work only you dont have any fuccion on the interior.... but what are you relly loking for you are doing a swap or what??? you have to know what you need this and what you really need this