I've been needing to check the ECU for codes. I was in safety boost for a couple days aaaaaaand guess what - code 34. :-/ Already got that a few weeks back and reset it, so I guess it's for real.
I forgot my ECU was a remanufactured unit. Number on it is A18-C61 ML4K, which doesn't match ANY of the ones on your list - I wonder what that means??? Could THIS be the source of my loud fuel pump???