Thanks for the reply. Not what i was hoping for, though... From my understanding I believe HPT only really uses a custom OS if you switch to a speed density setup or real time tuning. I suppose in that case it would be a sure "no". They are patched for the VATS delete, so that could also be a problem. My tune is actually an "off the shelf" tune for a '05 Express 2500 with some tweaks to the calibration. This is how I was able to get DBW, electric fans, and still have analog A/C. I do remember Lawrence telling me that the reason for that is there are restrictions on what he could really do (looking at you, manual transmission) because of the operating system number on my PCM. Maybe it's not a custom OS? Maybe I'll just have to grab one, make a bench harness, and create a new paper weight?
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