Mohamed Medhat

Hello guys I've had a new problem with my oil pressure reading it normally at a cold start does around 6-7 bar and then at normal driving betwen 3-7 bar from 2 rpm till the redline so one day at a cold start after a normal driving day on my way home it reached the max of gauge and started peeping and i immediately turned of the car and everything was fine so i started again and reading was high but after i drove it readings was normal and even at warm idle about 1.2-1.3 bar and it did the same thing the day after but the oil gauge keeps moving from 5-8 bar between and it is very weird so is it the sensor fault or may be there an obstacle on oil flow