Helping a friend and trying to learn a few things and lose hair at the same time. I have a 2014 2wd Silverado with rebuilt 6l80. The 6l80 that was rebuilt was from a 2014 2wd Silverado also. He has been trying fo a while to get it to do a trans fast learn to no avail, This is where I come in. I have have tried countless times and am having no luck. The OS system of the Tehcm of the installed transmission matched the OS of the origional, He contacted Sonnax at one point and they told him to put the Tehcm from the origional in the rebuilt trans. It is in the trans now along with origional tune. No matter what temp I try to do a fast learn it shows "temp lo" until it times out then it shows aborted, While it is showing temp lo also have no gears. Can someone please point me in the right direction? Could the temp be reading in the scanner and and Tehcm still think the temp is low. thanks for your help in advance,
Fast Learn Aborted
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NEW!!!
I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.
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