1997 SSE. After having new tank,new pump and sender installed. When I start the car, it will drive down the road at high speeds without ever touching the gas pedal. It will eventually idle down, sometimes after driving 35 miles, sometimes it stays at high idle. The weather has been very cold, but I never had the problem before the new pump was installed. Maybe a vacuum line got screwed up, fuel tank pressure sensor not installed properly, IAC, throttle body,fuel pressure regulator? Any suggestions? I appreciate the help. Thank you.