The problem started yesterday out of nowhere. 03 GTI, pretty much stock. I drove to work yesterday with out any issues, but after work, before I was even out of the parking lot I noticed the idle was rough. Ive had ignition coils go out, and that as my first assumption.
As I accelerated out of the parking lot, the car was pretty jerky and hesitant, and then I noticed the CEL was blinking. Checked it out when I got home, and I have 3 new codes, PO300 - Random/multiple cylinder misfire. Misfires are on 1 and 4. I switched coils 1 and 2 and erased the codes to see if the coil was bad, started it up, and same thing, misfires on 1 and 4.
Im pretty new to this engine and its a newer car than Ive ever owned. Most of the info I found was in the 1.8T forums, and usually pointed to software issues or vacuum loss, but all the info was vague or directly related to the 1.8T.
Could anyone offer me a little direction?