Please help me out I am currently trying to fix my daughters prelude.. I installed a P28 ECU but the step down harness my buddy gave me has two wires that had been cut!!! Can somebody please look at there harness and tell me where the cut wire goes... The wire is located on the top first spot of the medium plug if the plug is on your right side,,, I attached a picture to better show you where I am talking about.... Thank You Chris

 

If thats "D1" you are referring to, i believe that is CONSTANT 12 volt power to the ECU

 

http://ff-squad.com/technet/wiring.obd1.htm