The restart checklist for the machine I have handy is split into two;
Starter motor restart
Airspeed 70kn
Fuel tap open
Fuel pump on
Throttle setting ½
Mags “both”
Starter on
Or for Dire restart
Airspeed >135kn
Fuel tap open
Fuel pump On
Throttle setting ½
Mags “both”
If I have an engine issue at altitude I scan left to right checking all controls and gauges that have an impact on the engine. I then take appropriate action.
Rod1