I have a 99 New Beetle Tdi 1.9L. I am having some problems with it. Deisel is leaking from the fuel injector pump & I can't seem to get it stopped. I am fairly savy when it comes to engines but this is the first TDI I haved owned. Whats with the 1 long screw on the pump? Deisel is bubbling from that screw hole as well as the lower chamber seal on the pump. I replaced the top seal but was unsure on proceeding with others. Does that long screw have a gasket around it somewhere in the pump? I have read that the fuel temp sensor can cause some probs so I am replacing it as it only costs about $20. Any insight would be much appreciated. I love the little car and am currently not able to drive it!