04 5.4 CAI lean conditions

[bigbadwolf54]

UPDATE: Filled the truck up with ~21gal of 91 octane and the pinging has stopped, and the fuel trims are back to near normal levels, single digits + or - mostly. does this indicate the tune needs to be looked at?? Its supposed to be an 87octane towing tune. It also does the lean ping while programmed to stock and to the 87 performance tune. These are all custom PHP tunes for my mods.