Only 2 months? Shouldn't be a problem at all really
So it does crank, just won't fire.
How many times have you attempted this, how many cool down cycles ? What I'm getting at, if the injectors lost prime for some reason (shouldn't have in only 2 months), it can a couple attempts to fire. First attempt, you can try like hell to get it to go and she just won't fire. Next day she fires up first crank.
Keep in mind, - If you crank the engine more than 4 seconds consecutively, the PCM shuts down the rail...so it aint going to start. Stop, , attempt again before 4 seconds are up.