Was your vehicle part of the fuel pressure sensor recall? If you did have that service performed recently, I would definitely bring that up to the service dept.

 

All safety recalls have been done on the vehicle before i owned it. I was reading the the recall was just under tightening from the factory which would cause leaking so they replace the gasket and re-tighten. But regardless I found someone at lexus to order the sensor by itself for $260 and I'm going to replace it myself