Originally Posted by P's_Z

Yes, i do find a leaf every now and then, but never think that the issue since its strange that i turn off the car, turn it on again and it works fine(unless the leaf gets out of the way of the airflow passage when i turn off the car and turn it on again) im definitely thinking of removing my z1 maf hoses and the airbox just to be sure. Ill definitely take your advice and check the lines, pcv and hoses... Thanks!