Not sure how much "tuning" you have done but for any car that is way to lean at WOT. Doesn't matter Toyota,Dodge,Audi whether it was N/A or forced induction. AT WOT in Openloop you should see between 11.5:1-10:1 depending on what your ROM is tuned for. What "cable and program" are you using? And reflashing is going to help if it a mechanical problem. No offense but if your trying to tune this youself it doesn't really sound like you really have the basic fundamentals down.
Homebrewed tuned with Opensource!