Quote Originally Posted by brandongarnold02 View Post
What is a safe afr to run lean cruise at? I have seen so many different answers online.
Not an easy question to answer broadly or generally. What is it you're concerned with or for?
So long as it kicks out of Lean Cruise when it's supposed to, 17.7 wouldn't scare me a bit.
You copied the settings from a Holden .bin - can't imagine those settings are a danger for your 2500 (pickup truck or Suburban?).