Hi Everyone. I hope someone can point me in right direction. I've had this jetta for abt 6months now. Other than a few minor hiccups it has run beautifully. Recently it would occasionally sputter a bit around 80kmph but then clear up. Sometimes, taking off from a stop, you'd hit the gas but there'd be nothing there and it would stall but start right back up. Now, it has progressed to where instead of sputtering at higher speed, it smokes, pings, rattles and loses power till it dies. Sometimes it clears up after sitting for a few minutes but definitely not reliable. Anybody ever run into this before?