Hello. 03 Disco 130K. At idle my oil light is on or flashes a little. Got a$35 tester off Amazon. Cold idle 10psi, Cold 2K RPM 30psi, Hot at 2K RPM 30psi. Not sure if this even counts but a hot idle is around 5psi. I also think some oil is backing into the gauge and skewing the results for the worse. What do you think about these readings? I am going to replace the sensor.