For some reason this morning I got this message, but the sensor has already been replaced about 1 year ago, and the engine is full of oil. I also got the message again later in the day while sitting at a light. Both times the message would extinguish the second I pushed on the gas. Any ideas, and what kind of damage could be happening while the light is on? Am I ruining something by still driving the car, or does it mean that the pressure is back while I am driving since the me ssage disappears while not sitting at idle? Thanks!