I have problems with the engine start depending on what I was flying last. The fact that the Ctl E works says that some variable is in the wrong state and the Ctl E sets it correctly. Whe way I have fixed problems like this in the past is to use FSUIPC and assign variables to a button one at a time for anything that could possibly stop the engines then click the button followed by trying to start. I have found that usually it is fuel not flowing for some or another reason. Once you figure out what variable is wrong assign a key to toggle it and always hit the key prior to starting.

Dave