I think the diagnostic menu is only accessible on the first reboot (power down and up) of the ECU after a run cycle which is similar to the old Xicoy ECU's. As for the summary menu I just checked. I only have four runs total on the engine and the 3rd was the one where I turned the TX off while the engine was running to simulate a F/S. Other than every run having different numbers in the "AbNor" row, under the "AbNor" line each run there is another row that just says "User Off". All four of my runs just say "User Off". On Pg 57 of the manual they mention a PC terminal interface available in the future that would be able to give more detailed info. I don't see a PC interface cable on the Kingtech website.