Jetta Troubleshooting
P0420 engine light error just came on today in my 2003 Jetta GLX w/2.8 motor. I did some google search and it all came up for 1.8 T and 2.0 engine, nothing for 2.8 motor. The engine runs and drives great without any hesitation. It does use a little more gas than I'd like to, but it's cold...