So I've done an oil change, changed the spark plugs checked vacuum lines to the best of my knowledge. When I checked codes with my scanner, I had codes from P0300 thru P0306 *omitting P0301* (I was running on one cylinder at the time)😳 had my mechanic take a look an he said it was carbon build up in my valves... (Been working on audis for more years than I've walked this earth) he didn't find anything else. He swapped coil packs around for me and still no change.. I was thinking either an O2 sensor, crank position sensor or possibly even a camshaft sensor, but then I cleared those 6 codes and let the car sit for a bit and scanned again.
I got : P0300, P0301, P0302, P0303....
Cleared a 2nd time just to see if things would change again and I still have misfires on 1, 2 & 3. All in all I've been to the Audi dealership 3 times and they've helped me none. Suggestions? Answers?