I was wondering... How does Scangauge measure the timing that it displays? Is that data from a crank sensor, or is it reading a + or - from base and adding that number to base timing? I guess what I really want to know is can I use SG to set the timing without having to go through the bother of messing with a timing light?
I know that OBDII has a "Timing Advance" reading. Is that the data the SG is displaying? When I had a VW-specific tool that also did standard OBDII data logging, that's the only timing-related data I could find, and IIRC it read in + or - degrees from base.