Just as the title states, I encountered a strange issue with my 2011 Z. This problem arose earlier today around 3pm.
Upon starting up my Z, I noticed my engine shudders a little bit before the idle stabilizes. Also, I noticed the instrument needles of the tach and speedometer didn't do its normal wind-up. The oil temp and battery gauges didn't do their wind-up either.
Any idea? Could it be a vacuum hose or something? My Z has 37,000 miles. I did an oil and air filter change a couple hundred miles ago.
Here's a little video I made of the issue: