Im building the 1.5v with the 5301 display. I just finished the display and will be starting on the unit soon. Im confused on which cable will be plugged into the AEM. They have two cables coming off of the display one connects to the control unit, but what is the other one they call the RS232 for? I would assume this is for the AEM or any other computer for datalogging, but then on the controller they have what they call a Data Access cable which looks like the white connector in the picture on this page: http://techedge.com.au/vehicle/wbo2/1v5/built.htm, so then what would this be used for?

 

i think there is a post on how to hook it up on the aem forum.

 

The white wire with the output leads is what will plug into the AEM