2012 Honda Civic Si Problems
RepairPal has identified the most common problems with the 2012 Honda Civic Si based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.
The 1999-2016 Honda Civic Si engine oil pressure sensor is known to leak from normal operation.
More information about the oil pressure sensor here.
To correct the leak, the sensor must be inspected, properly sealed and installed, or replaced with new.