I have a 90 si hb i am puting the d16y8 into. I have the engine and the original ecu that was taken from the 2000 civic. The motor and ecu came from an automatic. I already plan on buying a ecu jumper from Rywire since the hb's wiring in the engine bay is all messed up. I"m going to use the 2000 civics engine wiring harness. Questions I Need Help With 1st - will the original auto. ecu work with my si tranny? 2nd - with the ecu jumper all i have to do is unplug the ecu, plug the jumper in the car and to the new ecu? right? 3rd - with the car already being mpfi I shouldn't have to run any wires?? V-TeC wire???? THANKS FOR YOUR TIME AND HELP!!!!