check ur sparkplug gap it may make ur idle cleaner it made my gsr run realy funny. i think a d16 is a single wire o2 and a b16 is a 4 wire. this might be a wild guess but unplug ur tps and try running it and clean the iac valve. i tried it and my car ran better. its a little wierd . so iam in the process in rebuilding a harness from scrach.