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Old 08-26-2023, 12:03 PM   #1
not2oldchevy
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Join Date: Sep 2009
Location: east tennessee
Posts: 158
lean codes from HE**

Can anybody tell me how to cure lean codes Tried everything from swapping parts to smoke and everything anyone has told me for 4000 miles . Still get both codes every time I drive it .Could it be in the tune? Runs good no other codes in over 4000 miles.?????????????????????????????????????? 03 5.3 in a 3100.
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