So still getting to the bottom of my lean bank 1 and 2 code. Since the CEL usually illuminated as I’m on the power, I’m kinda leaning towards replacing the coolant temp sensor. Can anyone check that secret menu you access through the radio by pressing and holding the station-adjustment ****?
Mine says: “TEMP 80 and TEMP 54”
thanks…. I’ll get to this solution one day🙄

 

If 80 is coolant, that is low since engine temp should be just over 95c. But this could also indicate a t-stat that is not fully closing.

 

So the top left number I’m not too sure of, top right is obviously your current volts.

The middle left (80) is the adjustable high temp shutdown for your radio!

Bottom left I think is the adjustable timer to when the high temp shutdown kicks in, once it trips.