from page 8 of the V4 ECU manual addendum

Last-OffCond: Added to the list of states is PowerFail. This will occur if the power was lost because of a defective battery or connection or if the switch is turned off before the engine is shut-down. If this state is displayed, the Info Menu contains information from the previous run and not the current one.


I am not sure but I think this data is erased after the next good run, so you need to remember to check it before starting the turbine again.

Hope I got this right, I blew another diagnoses this morning!