ok well first off im going to say is i dont have the funds after christmas to get the vag-com but hopefully by febuary i will. now ill start from the top, recently i had my cat and all 3 o2 sensors replaced by audi. after recieving the car back it threw a few codes, they were p0300, 304, 303 ,306 and a p0174. i called audi and told them about this and they said it could be the plugs or the coil packs that causes these codes. well i did a oil change and changed the plugs with some ngk's also ran some sea foam through her. now after that the CEL went off and was running smoother then before. now just yesterday the CEL came on again and threw codes p0300, 306, 301, 305,304, in this order and then p0171, 0174, now i dont have a freaking clue what to do so any help would be great on what to do.

 

Here, find out what the codes are, then you can find out what needs to be fixed.
http://www.bentleypublishers.com/tec....dtc.table.htm

 

thankyou for that, i never knew any of that but now i got to figure out the 4th and 5th digit codes mean?

 

anybody else might be able to help me here ?