Jetta Troubleshooting
Hallo, wie geht es dir Freunde?
Car specs: 2004.5 Jetta GLS 1.8t AWP Stage2 ecu ~145,000
About a month ago I installed a stage2 ecu (opttuning). Bought it from a fellow Minnesota gentleman off the vwvortex forum (how very lucky of me). I called opttuning to see what the stage 2 is all about...