I don't think the UG will work correctly for mileage w/o MAF readings.How do they estimate the fuel consumption ?? I run a TDI with EGR and MAF delete. Will the Ultragauge and Scangauge work without the information coming out of the MAF???
I thought the SG also looked at the MAF figures? (as per this post). I also seem to vaguely remember people reporting that their SC gave random numbers when they were having MAF problems.I don't think the UG will work correctly for mileage w/o MAF readings.
SG should as it uses amount squirted per stroke to compute the mileage, or that is my understanding.
It (SG) does use MAF data and changing MAFs will change mileage figures, but I believe its only a part of the calulation/equation. I never got "random" numbers, but they were quite different when switching/unplugging the MAF. Same as when you adapt the EGR. That really throws the mpg numbers off.