[Vwdiesel] 2001 Jetta 2.0 L 115 hp gas engine.

[Paul and Ingrid]

Hi:
 This is my first post as I am a new Volkswagen owner. Unfortunately I was not able to get the diesel model I was looking for. I am a close friend of Hagar and I only live 10 mins. from his place. My question is about diagnostic programs?  I want to buy or get a program that I can use on my computer . Can someone help me out on what I will need to be able to do my own diagnostics on my Jetta. Any help will be much appreciated, thanks.  Slowbirds.