2003 Quattro 1.8T. About a month or so ago, I noticed it was missing-mostly at idle. I drove 400 miles on highway and it was fine the entire time. Pulled into the parking lot at my destination and immediately started missing. I jumped out and checked the coil packs by pulling the connectors one-by-one. The misfire was on the second cyl. The CEL was obviously flashing as well indicating a miss. I hooked up the ODB II and it confirmed the miss on the 2 cyl. The plugs had maybe 1500 miles on them, so I assumed it was the coil pack. I replaced the coil pack on the 2 cyl. This did not fix the miss. I replaced the spark plug with a new one-that did not fix the miss. The plug was wet with fuel, so I rulled out the injector. I replaced all 4 coil packs-that did not fix the miss. I then determined since it was not the plug, coil pack, or injector, it must be the connector/wire. I ordered a repair kit and replaced the connector. I also checked all fuses and they were fine. Now the car will not even start. I'm at a loss for what it could be now and just dropped 2k to fix sludging. I'm trying to sell it as I've bought a truck, but I'd like to get it in running condition in order to do so. Any and all advice would be greatly appreciated. Thanks a lot.

 

Good luck bro, this forums is about as usefull as a Honda forums to figure out what is wrong with your Audi....

 

was your cel still flashing after u replaced the cylinder 2 pack or was it solid? After u replaced the coils did u scan again to see what comes up now?

 

most likely a vacuum leak.

Knock sensors sit right next to cylinders 2 and 4 so they usually the cylinders the record misfires during vacuum leaks.

I'd be looking for a broken check valve on the breather coming off the back of the valve cover.

 

You can always PM one of the people listed in the Tech Certified sticky.

My PMs go straight to my work email..... I don't always have the time to browse every post on every forums, I'm sure its the same for other people as well

 

Well I will do that next next time....Sorry for the rant!