To elaborate, i have vcm scanner up and running i know what im doing as i was told to spend 200h on this forum and on the Guild of EFI tuners on Fb Before messing with vcm editor, my issue is there is no solution for my problem and would like to make it public. I have my h3 hummer 2006 GM gen5 engine class the I5 atlas 3500 its bone stock ecu has never seen a tune before and i bought it new so thats how i know, im not going to brag about my accomplishments but on a daily basis tune my 2005 f150 on hpt i mean its brick central so i can navigate hp tuners. Now i calibrated my maf on my truck! But when the vcm scanner is on my H3 it will not log the Maf Hz or Maf V pid as in the pid to log the channels will not be in the channel menu, now it does have a frequency input on the pcm since i have a h3 service manual telling me how to test the maf Hz with a volt meter no surprises so far. Thanks for reading all this, long story short i cant get this point across to hp tuners CS. They out here asking me if i know how to log pids or open tabs in vcm editor but i really dont want to bring this issue to my IT employee and ask him to do on my company time as the guidelines go here are my files. what am i doing wrong here my English?