i havent had much time to work on the car lately, i did double check the wiring again, matches $0E for a 95 c/k3500 according to alldata...... tried a new iac just for kicks... no change...i can run the pintle all the way out (diagnostic reset) and leave it unplugged, car idles nicely. plug it back in, second start up it idles right back up... no datalog as of yet, cant get tunerpro to connect. im blaming win 10, will try to put together a win7 machine this weekend. my old mt2500 brick talks to it just fine.....