My 6.2 Silverado has loud engine knock[not carbon or piston slap] at
12k miles.
I know tune/warranty has been kicked around alot.
I know they will probably check my calibration history and find that the truck has been tuned. They can deny me warranty based on that.
What is not clear from searches is whether I could change the Ecm to get around this.
I beleive the milage is logged in the Ecm so this may not an option.
Can anyone confirm the status of this option with up to date info.
Could I do a "read entire" on my current stock tune and a "write entire" to a new ecm to carry milage to a new ecm
It's a 2010 Silverado
Pic is the tech2 screen the dealer is required to photo and send to Gm warranty people.
It doesn't log milage so warranty people may not see that ecm was changed.