on the highway in stop-and-go traffic all the sudden my car throws an EPC, CEL, and the ASR light came on. i wasn't gassing or anything just sitting on the highway. i'd get on the shoulder and restart the car and then it would do it again after like 5 mins.
it seems only to do it when i'm at idle or when my boost gauge is in vacuum.
i stopped and got the code on the way home:
google says thats:
"Throttle Actuation Potentiometer Range/Performance"
it seems to work fine then it'll just crap out all the sudden!
here's a link to another of my threads with some detailed history: