Just a dumb newbie question but what are the differences between tuning with the blm or int?? I borrowed the scanner from work to do some primitive tuning and it does not have a reading for blm just int. So im trying to do some ve tuning by getting someone else to drive while I read and write down some info. Im only able to see the int value's as well as map/o2/coolant temp/tps/rpm and speed. Im just wondering if there is a different calculation used for int campared to blm before I mess up my ve tables?? Greatly appreciate any help.

what type of scanner are you using?

Its a genisys if that helps any??

i've used the Mac version of it.
it should show the BLM, look for long term fuel trim

thanks I will look for that setting etc tomorrow. Thanks for the help, it will make life a little easier!!