Quote Originally Posted by Blacky View Post

Check those only if the ECM sends back a reply when EFILive transmits the stop/start chatter commands. You can verify that by turning on the menu option: View->Serial I/O. That will show the frames being sent/received.

Regards
Paul
Ok, and looking at the .adx file that has the macro listed as:

"Mode 8 Stop Chatter
Reply - Mode 8 Stop Chatter"

and that the Reply -Mode 8 Stop Chatter field had as a "process data" check box that is checked, would it appear that the ECM sends back a reply?