I have an 2001 a6 2.8. I just did a turnup on it and
it cracked a plug so redid everyhing again. When i
drive it down the road it does fine till i get up to
45mph then theres no powerand cant go any
faster. What could b its problem? Its been hook
up to a computer but that didnt tell me anyhing
If you only changed the spark plugs then the only thing that could be wrong is that you mixed up spark plug wires and have the wrong firing order. What else did you do as part of your tuneup?
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