I was driving home from work last Thursday, and I went to accelerate around a turning driver, and the car stumbled, then picked up. I thought that was strange, but kept on going. It seemed fine for a while. I was driving in some traffic, so I didn't have the opportunity or need for any real acceleration, but it seemed to be driving normally. A bit later I went to go up a hill and it felt dead. No real power at all. It just got worse from there. By the time I got home it was feeling bad even on slight throttle. I called Subaru, and got it towed to a dealer, luckily I'm still under warranty. The next morning the dealer started it to move it, it stalled, and they couldn't get it restarted. Not sounding good at all! They were busy, and didn't get to look at it for a couple of days. They had given me a loaner, so it wasn't a big deal. When they finally got to it, it started and ran fine, no issues at all. They drove it for a while, and finally it started to act up again. It never threw a code this entire time.
They have decided that it has a bad #3 injector, and have ordered one. I should get it back sometime this week. This is a completely stock 2011 WRX hatch, my first Subaru. I've been driving Honda's for the last 17 years, and I'm wondering now if I should have switched.