Well a couple months back my car started missing real bad, mainly in cylinder 4. I replaced the spark plugs,the spark plug wires, and the Ignition Coil Pack. None of those fixed my problem so I got frustrated and brought it to the mechanic.
The mechanic first suggested the intake gasket, But he replaced that and it wasn't the problem. So he tried swapping injectors, swapping spark plugs and plug wires, pressure tested the cylinders and all that. Nothing fixed the problem or moved the problem from cylinder 4 and the pressure tests came back perfect. He ordered a scanner from Audi that should be here sometime so he can do more detective work.

What could it be? BTW car is a 2.8

 

speed bump

 

did you find out what the problem was?

 

Nope. Still waiting.

 

no-one?

 

we are waiting for you to get around to asking the car whats wrong with it. you know it can tell you if you just ask. (scan the codes)

 

Yeah I've done that. It throws a code for misfire cylinder 4. It was throwing random cylinder misfire before also but hasn't done so yet since working on it. Now it just throws the cylinder 4 code.