Can you lose a custom tune?
Been working on car, finally get it running, not idling, same thing as when first got new cam, without tune.
So did I lose my tune?
Thanks
https://ls1tech.com/forums/pcm-diagnostics-tuning/287094-read-me-first-tuning-docs-ve-maf-ses-lights-faqs-more-01-31-07-a.html
First FAQ in the big sticky that says "READ ME FIRST"

