I pulled codes on my 4.9L 1990 F150 to see what it would have. One of the codes was koeo 26. I looked it up and it said VAF/MAF out of range. My question is my truck doesnt have a MAF it has a MAP and I know where it is located. My father had this truck for over 10 years and now it is mine. So why am I getting this code exactly? I am planning to pull codes again to see if it gives me 26 again.