Well, the SRT pump is totally different from the N/A pump. I cna't remember an N/A pump ever going bad, certainly not as often as the SRT ones do -not that they go out THAT often, just more than the N/As Is it STILL the P0401 code? There is little to the P0401 - it is either a bad pump, the relay on the RCM or the solder on the pins of the connector at the edge of the RCM.

My last limited would fracture the solder about every 18 months - I'd reflow the pins and be good for another year or more. The car I have now I've not had but a year and only 7800 miles - so no issue so far.