ran across a couple of links not sure what I would use an oscilloscope for...maybe knock detection? http://polly.phys.msu.su/~zeld/oscill.html also a page full of electronics links http://members.tripod.com/~thisthat/robelec.html side note: are there any .bin's for 1228331 ECM that are not exotic v-8's (SFI)? byE Mike Swayze mswayze@truswood.com kswayze@bellsouth.net