I'm trying to figure out how to tune my AFRs by tuning the MAF with % error through HPT. I know that I'm supposed to copy/paste the MAF % error from the scanner into the MAF table in the editor using paste special. I was going by the Russ K method then found that the MAF error histogram (#8) wasn't reading. Now doing some more looking around it looks like some people say don't use the Russ K method and just go straight off of the % error which is a custom histogram. What am I supposed to do, to many opinions and writeups for me to figure out what is going on. Apparently this is supposed to be simple and quick but not for me I suppose.