Mail order tune
take a look at spark (timing)
take a look at your PE table
your VE table
MAF table (MAF and VE are blended below 4krpm and non-WOT... contributes to high or low fuel trims)
MAF is simply WOT... that will adjust your fuel up past 4krpm
check to make sure cat protect is off.
then setup a bunch of histograms/maps/ select things to log.
monitor KR and current spark. monitor fuel trims .
monitor fuel if you have a wideband

