Ok guys, check this out. Found a video which contains a similar if not identical noise I'm experiencing. According to the user, the issue was a bad gasket that caused the O2 sensor to fit improperly. Forward to about 0:17. Anyway, here it is:
__________________
"It works 60% of the time, every time."
"Some say it's a waste of time, others say it's an
incredible waste of time."
"The ultimate measure of a man is not where he stands in moments of comfort and convenience, but where he stands at times of challenge and controversy."
2013 IOM SS/RS - 1LE. Born 5/6/2013 (1 of 32 1SS IOM 1LE's)