i'm borrowing a 00 beetle 1.8t for a while. I've had it since may and lately its developed a hesitation almost to the point where it'll stall at low rpms. it seems to do it more on acceleration from stops and going around corners. The check engine light is also on. I'm thinking fuel pump, but i dont have any experience with vw. chevy v-8's are what i know. any other suggestions?