[Deeve]

I realize the below technique doesn't replace a dyno run with a wideband O2 sensor but would someone help me a little with this? I would like to try and keep my engine safe until I can get to a dyno. The Predator book isnt the best so I was looking to find out what I settings to use to get the information I need and then what results to look at. I have never done data readings before so I am not sure what the setting would be. When -15% is mentioned is that number going to be given to me somewhere on the readout and what will it be called.
Thanks for the help.

Dave
"For those of you who want to try it, and don't want to go to the dyno, there is a simple way to check whether your running too lean. With the factory tune (unmodified) do real time data for gas acceleration WOT, selected parameters and make sure to add short term fuel (bank 1 and bank 2), at WOT see what the percentages go to (should be around -15% both banks), then when you install the Diablo tune see what it changes to, then add or take out fuel to get close or the same you were stock. Again this is a crude way and not all that accurate, a wideband A/F monitor is the way to know (DYNO)."