I'm sure this is getting old by now but thought I'd offer an update on the "progress". So, the mechanic and I re-aligned and decided to loop in Autologic. They took the wheel and determined the PCM had in fact not been updated as the dealership said they did. They downloaded the update and that took the code away. We'll see if that in truth is the fix over time. I will say, we've never had any of the typical symptoms of a weak pump, just the CEL so fingers crossed.