My '96 A4 will start up and die 2 seconds after. I took out the Idle control stabilizer valve and cleaned it and replaced the coolant temperature sensor while I was down there. After putting everything back together the car started right up and maintained an idle for about 2 minutes until I turned off the ignition. I thought I fixed it. I come back 5 min later and try to start the car and now it won't even turn over. WTF Got my friend to jump my car and it still won't turn over. Does anyone have any ideas? My car is sitting on my driveway on an incline so it might be a fueling issue but why would it start and maintain an idle the first time?