I have a 96 jdm itr going into 2000 dx civic. I got all my necessary bolt and mounts. I bought a usdm 00 itr removed immobilizer ecu. I just bought a 2000 civic si engine harness but only the gray and blue plug will fit the ecu and not the green plug. Do I need some sort of adapter or so? I plug this ecu into my dx wire harness and all three plugs right up but couldnt crank becuase I didnt swap out the pins. I tested this usdm p73 ecu on my buddy's 2000 teg and crank right up after you turn on the engine for a few sec. But why wont the civic si harness plug A(i believe, the green plug) will not fit the itr ecu except the other 2 will plug up and all three plugs from my dx wire plugs up? Need some help........thanks..

 

isnt the 2000 Si ecu harness OBD2b while the 96-97(98) ITR is OBD2a? I think thats where your problem is.

 

but its the same year harness and ecu, which is 2000 obd2b.....

 

I believe the si was the only one with OBD2b and all other honda civics had OBD2a Not sure, i have a 93 civic.

Check out this picture and see which ecu is with which harness. I would just hook the ecu up to your dx harness and add the wires that needs to be there.






Modified by Luserkid at 7:47 PM 8/25/2004

 

Who told you 99-00 SI is OBD2a?

It is OBD2b

 

I thought so. Ehh to many different apps. Ill just stick with OBD1

 

Damn getting a headache off this ****... So what do you guys suggest for me to do? get a 2000 si ecu with jdm R engine (something Im really not happy about doing becuase its not to its full potential)? or as what luser kid said....run my dx wire harness and add necessary wires to my usdm itr ecu? just need some help.....all you 99-00 ek hybrid owners.....whats your setup and what should I do?? thanks

 

I would say just add the wires to the dx harness, but that's just me. I don't have any idea why the 00 ecu wouldn't work on the 00 dx harness, both are obd2b. go figure....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Smith Wise &raquo;</TD></TR><TR><TD CLASS="quote">I would say just add the wires to the dx harness, but that's just me. I don't have any idea why the 00 ecu wouldn't work on the 00 dx harness, both are obd2b. go figure....</TD></TR></TABLE>

the thing is....00 ecu fits my 00 dx harness....but the 00 si harness only 2 plugs will fit the harness and 1 plug wont....which is the green plug...correct me if im wrong someone.....Ill try to take some pictures..

 

nice picture of the of the pin outs "Luserkid" def. will have to save that.

 

anyone else?

 

run a chipped p28 with a obd2b-&gt;obd1 jumper harness

 

Convert to OBD1. You'll be very happy once you did it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dantastic &raquo;</TD></TR><TR><TD CLASS="quote">run a chipped p28 with a obd2b-&gt;obd1 jumper harness</TD></TR></TABLE>

I suggest this as well

 

The green plugs connects to your interior harness. The third grey plug is on your interior harness. I have the same car, same motor and same engine harness. It is all plug and play. If the usdm itr ecu fits your dx harness, it will fit your si harness as well. You'll understand when you pull the dx harness out. I thought the samething when I first picked up the si harness thinking it was missing a plug.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jackson &raquo;</TD></TR><TR><TD CLASS="quote">The green plugs connects to your interior harness. The third grey plug is on your interior harness. I have the same car, same motor and same engine harness. It is all plug and play. If the usdm itr ecu fits your dx harness, it will fit your si harness as well. You'll understand when you pull the dx harness out. I thought the samething when I first picked up the si harness thinking it was missing a plug.</TD></TR></TABLE>

thanks man.....a load off my shoulder...

 

yeah that green plug goes to the int harness the 3 ecu plug is connected to the body harness