Brand newbie here, so be gentle. I seem to have a sensor or electrical problem in my 2008 GTS. Tired of paying a ton and taking the shop's word for it on what error codes were stored. (and it's an hour away) Is there a better way to do this? Aftermarket scanners or anything else? It's currently really screwed up so any help would be appreciated.

 

Here is the cheapest OBDII scanner, I have the same one even after 2 years it works just fine
http://www.ebay.com/itm/U380-CAN-BUS...#ht_1816wt_758
you will be able to read the codes and then search them to find out what they mean