Need help with xdf file for 12205612 OS on a 2000 Silverado 5.3l LS 2WD

badz86 · Post by **badz86** » Mon Mar 17, 2025 4:24 am

I've scoured the internet and the forums for an xdf file for 12205612 OS on a 2000 Silverado 5.3l LS 2WD. I'm looking to tune for EGR, CAT delete, Cold Air, 1 7/8 headers/nocat/spintech 3" exhaust. Truck is stock.
Found one xdf on gearhead forum posted in one thread seems to line up except i am getting wild specs on Spark Advance tables for sure and spot checked others and just seeing tons of red and numbers that seem way to high. I used the Universal Patcher to create an xdf and it also shows a bunch of stupid high numbers everywhere. I know the way to work around it is to switch the OS. I just don't have a spare PCM to risk bricking. Guess i'm hoping someone knows how to fix the XDF file to read my stock bin properly. Or can point me to some literature to reference. Anyways i attached some screenshots and i apologize is this is the wrong place to post this. I am a noob. Thanks