I am new to HP Tuners and tuning and have a 2007 Silverado 1500 NBS 5.3 LH6 with 4l60E trans. I plan on tuning the MAF and speed density and have been trying to log speed density data but have a problem. From everything I read you need to disable the MAF to log only speed density, but when i disable the MAF by setting the fail frequency to 0 or unplugging it the transmission goes into default mode and has max line pressure with a very hard slam into second gear. That is as far as I got.
How can i log speed density data without screwing up my transmission?
Thanks,
Greg