Hi Guys,
I have a similar problem were the gauge shows 60 psi on ignition before the engine is started and then rises to 120 psi as soon as I start the car. I have given it to a local garage who has replaced the sensor with a working one from a 350z which was being stripped for parts though it still has the same problem. Is there a possibility that it could be an issue with the wiring instead of the sensor?? I have looked on many posts but every time it points to the oil pressure sensor. I find it hard to believe that the replacement sensor decided to break between being removed for the original engine and being fitted in mine.
Any ideas would be much appreciated!!