Started the Saabaru this morning, let it idle for a few minutes, then drove 2 min to the local gas station. Got gas and upon restarting had a rough idle with a solid CEL for the above P2102 code. Throttle incredibly unresponsive, was able to limp it home in 1st, but couldn't get beyond about 1500rpm. Pulled it into the garage and upon restarting it to move it back a bit more, the car started normally no CEL and normal throttle feel. I haven't experienced this CEL / behavior before. A quick search seems to point towards a relay? Was also instinctively thinking checking the throttle plate/body since it's likely neglected. I also blew a circuit or something in the garage after turning on a spacer heater and going to close the door. So I need to get that figured out to get this figured out. Good times. Any of you smart people have ideas?