Yes, that was my first tought as well, I have sprayed brake cleaner around the intake manifold gaskets, hoses etc. with the engine running at idle, but not a reaction.
Somtimes after driving, shutting the engine of for approx. 15 minutes and then starting again, the misfires at idle goes away, with me coming to the conclusion that the problem is solved, but no, the next day, it´s the same again.
