okay so check it out, I have a 94 GSR with a 00 USDM b16a2 swap, the wiring harness is still for obd1 therfor I got a 94 B16 P30 ECU wired in I've tried my friend austins and now I have this one but my idle is bouncy... it steadily goes up and down from 1k to 1.5k and then eventually itll die down to 850 and stay steady but once I go again and stop its back to revving up and down