When i start the car, the oil pressure gauge go to 3 bars and stay there, when the temperature going hight, the gauge moving down down down, 2, 1 and when going about 80C going to 0 bars. 3 days ago i changed the oil, oil filter and fuel filter but still have a same problem. Now when i put out cable of the oil pressure sensor the gauge stay on 3 and don't moving. Do you think this is bad oil pressure sensor or? I haved a problem with my sump and i was take off it, going to replace and the mechanics tell me the engine is okay on down part, may be possible oil pump.. ohh.. This car have one oil pump or more?