Thanks for the help. I"m not sure when I got the code because I plugged in and unplugged the box several times w/out taking the boost elbow off and even tried to plug the factory elbow w/vaccum cap. I don't think it's a persistant problem, just wanted the code gone. Talked to dealer in ares thats pretty easy to get along with (I think?) about resetting the code he said try battery trick, but it doesn't work. He asked if I had a box and I said yes, he thought that's what set the code . He might reset it for me w/out to much greef but what will that cost , and if it isn't defueling what will it hurt? Or is it? Don't want to be flagged but shuold I worry about resetting it? Thanks again, Iam at a crossroad!!!