Curious if any of you that have installed permanent WBs have compared the readings to other WBs located in different part of the exhaust system.

I have done a quick comparo of my M&W UEGO in the tailpipe vs my new AEM in the dp just aft of the turbo. The two do not agree under all conditions such as cruise and idle. Still reviewing data as it was not as expected under cruise conditions. I am moving the AEM to the midpipe to get away from the high egts and will do more comparos.

Not sure if using the delta function is needed to get really accurate readings, maybe some of you can post about your findings using this function that may net me a better comparo between two WBs. I have each sending a separate 0-5v linear output to AN1 and AN3. AN2 and AN4 both register a significant voltage connected to nada. Thought about grounding AN3 and AN4 and using the delta. Need to learn the details of setting this delta up, off to do a search ...

twok

 

sounds interesting. let us know how the delta setup works. i have also thought about this but don't know how to do it and have not found a "how to" yet.

 

Got the bung welded into the midpipe today. Should be able to do a second round of comparo by next weekend.

Also researched the delta feature and don't believe it will be of use as neither wideband are two wire signals. There is a single ground for both sender and heater.