Same problem again. had another short run again last night, lost power several times. Waited a couple of hours, fired it up and it ran reasonably well, all things considered. Stopped back at Allegheny Ford, they pulled codes..P1211 was back (which I figured since the SES light came on twice) also a P0478, which showed up the other day, and a new one, P0470. They again took it for a test drive and nothing! Ran like a charm..sort of. It seems to run fine some of the time then like squat at others. When it loses power, feels like its missing really bad and a pronounced knocking(injector knock I presume) seeming from the right bank. when It revs up, it still has no power. If I shut it down for a few minutes, like perhaps 10-20 minutes, and fire it back up, it seems to run fine, at least for a while...and so far ALWAYS when the tech takes it for a run. I really need some help on this before I go completely insane. Also...referral to an HONEST PSD mechanic/shop in western Pa!