i need to convert my vz ss back to afm so it can pass an epa. i have to full stock airbox setup with afm but the plug used for my mafless tune (that goes to my sensor is different to the one that plugs onto afm has anyone had to do this come across this problem if so does it just need a new plug or ... any help greatly appreciated!

Try ls1.com the guys on that forum should be able to help.

It's not going to do anything plugging in the maf if the tune is mafless, reason being is that the tune has the maf as failed. If you can't pass an EPA test with a mafless tune then I would be taking it to the tuner and telling him to fix it because that's terrible tuning on his behalf. Provided it doesn't have a massive cam it should pass, make sure you have the standard cats fitted to pass the emissions test and the standard catback to pass decibel test. Fit the standard air box so they don't question the otr and cause more headaches.