So a couple weeks ago my car was running fine. I parked and it sat there for a couple hours. When I started it, it was misfiring on startup and sounded like it was running on 3 cylinders, but will eventually idle normally. After I cleared codes with vagcom to reset fuel trims( there were no codes at this time) it started up fine.

A couple weeks went by and it did it again... Then it started to misfire and throw codes. The code is random misfire and cyl 2 so I swapped coil packs around to see if it follows but cyl 2 still gets the code.

Now when it starts up and misfires, the engine is burning oil on start up. After driving around the oil burn stops. This issue with the misfire and oil burning only seems to occur during cold start.

Anyone have any ideas?

 

anyone?

 

change the piston seals, the problem may be because its leaking oil in the chamber. change the spark plugs and check and correct the ignition timing. also check the condition and tension of the timing belt. get the voltage output of the crankshaft position sensor.

 

well i replaced the collapsing pcv hose and the issue seemed to disappear as well.

thanks for input