Slight update, idle problem is solved! ended up being a loose connection at the pcm connector, replaced the end in the connector, idles great now. also have datalogging now, bad obd1 cable on my autoprom, for now i just wired in an obd2 connector next to the obd1 and am using the obd1.5 cable for my caprice, works well, though i am having some trouble emulating and datalogging at the same time, keep having to flip the outside switch back and forth to get connection to log...have always had that problem though on any car i have hooked it to.... and i have to take the dash back apart because i still am not getting a speed signal, thanks guys!