Made it back home. That wasn’t fun as my cats were with me and it was 95*F outside. First issues today happened at 21% fuel level. Cruising on the interstate at roughly 80 mph, the EPC light comes on and about 30 seconds later the car started misfiring. Slowed down, pulled over, car died as I came to a stop. Took 30 minutes to get the car started again. Made it 10 miles and it died again. Another 30 minutes and 10 miles later made it to a gas station and it died just after I pulled in. The codes were as stated in the above post. Strangely, after filling up I didn’t have any issues until almost 2 hours later at 71% fuel where I made an overtake and the car didn’t appreciate it. The EPC light came on showing only the fuel pump malfunction and a momentary stutter afterward. I was able to clear the code and continue after backing off the throttle and sitting at 60 mph. I topped off the fuel and drove another hour and a half home. In my town I was ripping it very hard to see if I could get any problems to occur and it was completely fine. While fighting the car back on Thursday I was logging fuel trims, HPFP and a few other things. The trims were fine until the HPFP crashed. There doesn’t seem to be any selection for the LPFP in VCDS but I was using the OBD-II menu drop down only. The fuel level was 56% then and after I filled up I didn’t have any issues until I reached 21% this morning. I suspect this is not an electrical issue as others have had but rather a physical one as a full tank has no issues. LPFP, regulator, or the in-tank transfer lines are looking to be the culprit here. I’ll be draining the tank soon and pulling everything out to investigate.
