Depends on how your ED comes up (no pun intended). I know some guys report that they jerk off so much that they get used to the 'death grip' of their hand and don't get the same intense sensation with a real woman, which makes it difficult for them to get or keep an erection.
This is a response to all of you. I asked this question because I came off a 90 day reboot and was MOing without death grip and using lotion and stuff (sorry for tmi). I had PIED before and i was just making sure that it wouldn't come back from just using imagination.