ok i have a d15b in a 94 hatch. it was idling a little funny so i cleaned the iacv. at the same time i put on a msd cap and coil that i had from a previous car. i also cleaned the tb out w/ a little carb cleaner. it drove fine till i ran it up to about 6k in 2nd then the engine light came on. i checked the codes and it was giving 1 short flash and then a long flash. ?? so i unplugged the battery put the other dizzy back on(the msd was on a seperate dizzy) and its now throwing code 20, ELD. car still runs fine, no power surging, but one thing i cant tell if vtec is engaging. any help???