Originally Posted by fenix-silver
So you are successully able to get data in hyperterminal, right? And what baud rate are you using? Also, make sure only one application is connected to the COM port at a time. For instance, if you have hyperterminal open and it is connected to the port, other apps won't be able to read the port too. In the AEM utility, does the COM port of your UEGO show up? If so, what happens when you click 'Connect'?
Yes I only use one app at a time and make sure to close the other app. I'm using 9600 on hyperterminal. Yes, AEM sees my COM port that I also use on hyperterminal. I hit connect but it does not say connected below the button. Is CNG on the aem program AFR? I see lambda but nothing that says afr. If I do lambda do I need to increase the baud rate?