I have had the Edge EZ installed for about one month and used it under no load. I have not had any problems until today. The truck is loaded pretty heavy with furniture and I noticed a shutter from the transmission once in awhile. I am going to get transmission upgrades in a couple of months so I want to unhook it while I have the load. I know I can disconnect either the Data link or the MAP connector from the EZ and it goes back to stock without removing the EZ box. If I remember correctly, it is the Data link but would like someone to verify this. I'm leaving in the morning to deliver furniture (600 miles) and don't want the EZ connected. Thanks !!