Ok so I just bought a 99 gls Volkswagen Jetta for $1900. My buddy owns a garage and ran tests on it on his computer. It said the only main problems was either it needed a new catalytic converter or a 02 sensor. After I put gas in my car just a lil while ago she wouldnt start until I gave her a little gas. Could this of been caused by either the 02 sensor or catalytic converter? please let me know... p.s. ive never owned a Volkswagen if you have any info or comments about Volkswagen or Specifically jettas please let me know thanks)