If you're specifically referring to logging for auto-x, i can't help. BUT there's an app called Torque that connects with a bluetooth dongle to your ECU. It can display live information as well as data log whatever parameters you want.
Other option is a Dashhawk or whatever it's called. That's probably in the hundreds of $ while the app and bluetooth dongle would run you max 30$
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.