I have an 04 GMC sierra that has been tuned. I tried to read and save the file but it stopped and showed failed. DOes this mean the tuner has locked the file
I have an 04 GMC sierra that has been tuned. I tried to read and save the file but it stopped and showed failed. DOes this mean the tuner has locked the file
Did you try reading it on low speed?
Is there anything aftermarket like a radio? If there is, try unplugging it or pulling the fuse.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.