when i start the car after it has been sitting for some time the engine will start to misfire. it also started to smoke while the misfire was occurring. i found one of the vacuum lines that goes to the "T" off the engine breather and intake manifold that was collapsed and cracked so i replaced that. my thought was that oil was collecting there and when starting the engine, the vacuum leak caused the misfire and the oil that collected caused the smoke.

after replacing the line everything went away and was normal. but the issue came back last night.

heres a vag log on idle

 

Anyone?