I've read a few threads on this but don't really understand. I've never tuned before so this is all new for me. Is there anyway to use the AEM UEGO to log data. Can I just get some kind of cable that connects the Wideband to the computer? And also since this information isn't coming from the ecu itself, how will ECUFlash be able to associate it with specific engine conditions like RPM and load and such?

 

I am not trying to come off as a dick, but seriously you are going to have to read quite a bit. You can log the AEM through evoscan by making a serial output cable, and using that in conjunction with a serial to usb converter unless your laptop has a serial port.

 

Agreed, you have a lot of reading to do.

There are two options with this particular wideband. You can either use the analog out and splice it into and unused input on your ecu. This is normally done by hijacking the rear o2 input and disabling the rear o2 functions in the rom. Evoscan then logs the raw data from the rear o2 and uses a formula to determine your AF ration. Unfortunately this allows a certain amount of error into your logging because of voltage drops, line noise, imperfect equations, etc. The second and superior option is to add a serial cable to your car which is very simple and there is a multi-page thread on how to do it in this forum. This method is not affected by voltage drops and will be accurate as well as faster, evoscan is already set up to use serial logging from the UEGO so all you need to do is choose the settings that you will use.

 

Hey, I did a write up on troubleshooting the AEM Uego and posted it here.

https://www.evolutionm.net/forums/ev...put-cable.html

Post in that thread if you need further help.