We recieved this Audi with a check engine light complaint. Scan revealed 1 code (P0304) for a cylinder #4 misfire.

So far we have replaced spark plugs, fuel filter, air filter mostly for basic maintance.

We have swapped ignition coils between cylinders and...

FIX posted 12/23/2009

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle