F/A 18 Cold and Dark startup

[Danos]

Just started having a issue starting up the jet from cold and dark I tried in instant action, mission and also a campaign I do it a quicker way, but have done it this way 100's of times. I turn on battery switch, power on APU ( I don't do the fire test, but since the issue I have tried doing it) once APU light is green start right engine at 20-25% put throttle to idle I then turn on Left DDI, right DDI, HUD and lower AMPCD and this is where I have the issue only the right DDI and HUD comes on the left DDI and AMPCD don't turn on? Normally they all come on and when the AMPCD comes on it is on the coloured map and I start the INS alignment , STD heading, reset FCS etc and go thru a few other things then start the right engine. If I do start the right engine without the left DDI and AMPCD on they do come on, but they are different the AMPCD isn't on the map it is on the SA page and INS doesn't seem to work?

The only thing I did was I have a sim pit and I changed a few Arduino's around, but I have checked my switches and everything is working correctly I even tried it using the mouse in game so not my pit and still nothing. I haven't got a track yet as just happened but wondering if anyone else is having this issue? or might know what it could be. I haven't tried Auto start, but will try that tomorrow.  

[Scotch75]

Just started having a issue starting up the jet from cold and dark I tried in instant action, mission and also a campaign I do it a quicker way, but have done it this way 100's of times. I turn on battery switch, power on APU ( I don't do the fire test, but since the issue I have tried doing it) once APU light is green start right engine at 20-25% put throttle to idle I then turn on Left DDI, right DDI, HUD and lower AMPCD and this is where I have the issue only the right DDI and HUD comes on the left DDI and AMPCD don't turn on? Normally they all come on and when the AMPCD comes on it is on the coloured map and I start the INS alignment , STD heading, reset FCS etc and go thru a few other things then start the right engine. If I do start the right engine without the left DDI and AMPCD on they do come on, but they are different the AMPCD isn't on the map it is on the SA page and INS doesn't seem to work?
The only thing I did was I have a sim pit and I changed a few Arduino's around, but I have checked my switches and everything is working correctly I even tried it using the mouse in game so not my pit and still nothing. I haven't got a track yet as just happened but wondering if anyone else is having this issue? or might know what it could be. I haven't tried Auto start, but will try that tomorrow.  

I think if you do the fire tests, a few systematic things linked to the engines are shut down as well. Usually, after the engine fire indication tests, you need to rotate that Bleed Air knob clockwisr around 360° for each engine to reset everything (it's on the right panel). Try that and see if it does anything.
Cheers!


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[Tholozor]

Bleed Air knob position shouldn't cause electronic failures, this sounds more like a generator tie problem that one engine isnt supplying power to all electronic buses. Check position of the GEN TIE switch?

[Danos]

Thanks @Scotch75 and @Tholozor for the suggestions, don't no why but all working fine now I guess the simple turn the computer off and on really works.