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Im looking for a file for a 2007 classic silverado OS# 12597120 my truck is currently an L59 (Flex Fuel) but it does not have the actual sensor, its calculated. Im installing the sensor but need help tuning it for an actual sensor. Wondering if there were any tunes out there with this OS that actually had the sensor?
All 06 and 07 Classic L59s were Virtual Flex. Just toggle the Fuel Sensor switch from Not Fitted to Fitted and enable the DTCs for the sensor. You can look at a 05 L59 to see which ones. There are upgraded OSs from GM for 07 L59s for improved Virtual Flex. 12619624
Before you put in a lot of effort might not be a bad idea to check if there's a newer OS. 1259xxxx for a 2007 is a good indication it's pretty old. --> https://tis2web.service.gm.com/tis2web/
Ok I did that, it appears to be reading now. I'll need to out some corn in it to be sure thoQuote:
Originally Posted by 2xLS1