Very very rare if a PCM goes bad and if it goes bad it usually does not come back. Intermittent no starts are hard to pin point but I think you should look elsewhere. An IDM would be unlikely but more likely than a PCM. (IDM-injector driver modle-) Do you have the updated crank sensor? Does it only happen hot, or does it happen cold too? It could be a dozen different things. Has your check engine light come on. Does it die while driving? Need more info...:icon_ford: