I need someone who uses hp tuners and is familiar with 02 lb7 tunes. Bought my truck in Sept of 17 it supposedly has a fuel mileage tune in it. Looking for someone I can send the file I pull from my truck to see if anything has been changed. I work at a Chevy dealer the ecm calibration numbers look normal however the older ecms are not as sensitive to changes like the more modern ecms where the calibration number changes when the ecm is flashed. Thank you in advance.
