I've been reading in some of the other threads about a reflash for the LLY (injector recalibration for better fuel economy, reduced noise) that apparently came out in early Sept.


I have an 05 LLY that was built in early Sept and wondered if my truck came with the the new settings from the factory or if it needs to be reflashed. Is there a VIN cutoff to know which LLYs need it and which don't?


Thanks in advance

I am very interested as well. I have an '05 LLY built around August. Edited by: jpekarek