I'm trying to figure out why a '99 Jetta wouldn't start after it's visited a gas station and had its tank filled. This happens every time it fills up, and at random intervals after that. What happens is I'll try to start it, and it'll crank but but not start. If I depress the gas pedal it tends to help, but the engine dies if I let my foot off the gas. I have to hold the gas pedal to keep the engine operating at the lowest speed that isn't obnoxiously loud. If I hold it long enough I can let my foot off the gas and the car runs well.
I haven't really worked on VW's, is there something I should be looking for here? It seems like a normal tune up isn't in order because usually the car starts right up. Being able to press the gas pedal makes me wonder if this is an airflow issue, but I'm unsure of which parts control that on this car.