Hi all, I currently have a PN 411 ECU from a 2002 something.
I am using on a turbo 5.3 build. I have the newest version of HP tuners on my laptop.
I credited the stock file in the ECU so i can start tuning.
I wanted to right away start with a 3 bar enhacment, but the enhancment is grayed out as an option, only a 2 bar is poosible..
From what im told (By HP tech support) that i need the upgraded OS, but denies telling me where to get it from.
Can anyone help me get to a new OS file that will allow me to use 3 bar map on my 5.3/cable throttle body/manual trans turbo engine so i dont waste more credits from bad technical support.
TIA
Darren