So, i wasnt sure where the best place to post this was, but anyway, regarding the AEM UEGO 30-4110 wideband, with the Bosch O2 and the gauge, is it possible to switch the gauge from a standard Stoich AFR display, to a Lambda display? I see where they sell lambda specific gauge faces, but i couldnt find any clear documentation regarding mode switching. Im aware of the rotary dial in the back of the guage, but upon reading the manual, its unclear what position it should be in to achieve a Lambda display readout. At this point, im not even sure thats its possible. Currently, its working perfectly displaying regular AFR values, but im planning to go with a flex fuel and content sensor to run ethanol. Its seems to me that getting used to interpreting the air fuel ratios in terms of Lambda, might prove beneficial in running a ethanol/petrol mixture, seeing as how a value of "1" is the equivalent to a 14.7 stoich afr value. It would eliminate having to memorize all the different AFR values, based on the fuel mixture. So starting early on the task of getting used to seeing my AFR's in Lambda, would put me ahead of the curve when i do convert to flex. Has anyone ever messed around with switching between the two displays? Is it even possible? If so, can it be accomplished by altering the position of rear rotary dial? Or does it need to be done through software? Any input will be much appreciated! If you made it this far, thanks for taking the time to read my question, and have a good day. Thanks....
-WILL

 

Though I have never used an AEM uego. according to the AEM uego document(page 11), the gauge seems to display lambda values when the rotary switch is set to P1. Did you try it?

 

crimson red, thanks for the answer. Ive not yet tried it, but i certainly will. My car is currently down due to a problem with the release fork/tob, that ive yet to diagnose. I figured it was something to do with the retainer collar or wavy spring becoming separated from the pressure plate, but now im not too sure. Once i figure out why ive lost the majority of my clutch disengagement, ill try the P1 setting and see if it starts showing lambda. I will post my results once i have them. Thanks again for the reply!