I have a 02 A4 1.8t my check engine light came on last week so i brought to a place and the print out said that i had a miss fire on cyc.1and2 and just today goin to work i had to get on the car to get onto the highway and the hole car started to vibrate now it does it everytime i drive if i just touch the gas to hole car rumbles i guess its missing alot worse now i really dont know much about this stuff but i cant get it into the shop till monday so im pretty neverous wondering if anyone has any thoughts on what can be bad and how much it could run me.. thanks guys.. i had it on the 93oct. mode when this happened this morning wondering if that had somthing to do with it.

 

Maybe it's just time to replace your spark plugs...

 

happend to me when i found out my k04 was finished.,

 

i just changed them 2 days ago before i made a app. to bring it into the shop

 

sorry im new with the audi's thats the turbo right?

 

I was haing same problem when I had boost leak.

How was the old sparks plug look like ? are they blacked out or something ?

 

they had a like a dark gray look but not to dark i still have them do u think i should bring them with me to the shop to show the guy

 

Well, you need to find out why you are misfiring.

Swap the coil packs around to see if it follows the coil pack.

If you dont understand what I am talking about, just take it to the shop.

There is not much point in explaining all the troublshooting steps if your just taking it to the shop anyway.

If you can find out why its mis-firing, you can replace the coilpacks, or ICM, or plugs to fix the problem.