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Thread: lean cruise 5.3

  1. #1
    New Member
    Join Date
    Feb 2012

    Default lean cruise 5.3

    i have a 5.3 z71 2003, I have been wanting to enable lean cruise but how dose the graph on lean cruise effect my a/f, is as the eq is added it raises you a/f up like 17:1 or go
    down like 10:1? any help please, the lean cruise option is already there in the stock tune

  2. #2
    Lifetime Member
    Join Date
    Aug 2010


    Most, if not all of the information you will need is already on this Forum. Read the threads in the Tuning For Economy and CAX Files subcategories of the Petrol / Gas section.

    Here is a link to a thread that discusses how the final LC (Lean Cruise) EQ values are calculated.

    You will need a LC CAX file to activate LC in your calibration.


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