The oil pump has a pick-up screen that is inside of the oil pan and it sounds like the screen is stoped up with trash. When you start it it takes about 30 mins are so for it to stop up. then when you turn the engine off the trash falls off of the screen and you get your oil pressure back again. This is 1 thing that could be wrong. Another thing that could be wrong is the oil pressure spring that is in the oil pump may be broken and you can replace and check that with out removeing the oil pump.
the coil
You first need to get an oven. Then seal the oven door with silicon glue so no air can get out. Then turn on the oven, a few minutes later, turn the oven off. Since heat causes expansion of Air, it makes more pressure, and pressure causes heat. Then the heat causes expansion, expansion causes pressure, pressure causes heat. and the cycle goes on and on..........
4-7 minutes depending on air pressure which causes lift.
Driving on low tire pressure flexes the tire, causes overheating and can make the tire come off the rim on corners.
Could be oil screen on pump with sludge build up after a lot of miles if screen is clear relace oil pump if your engine does not knock mine was a dirty pump oil screen
Stalling while driving may be caused by a collapsing or kinked neoprene fuel line.
time to get a watch! :)
Year, Make, Model, engine size please. possibly an ignition or sensor (electronic part).
causes of abnormal pressure
2 reasons for the system to cut out, low pressure, and high pressure. I am thinking you are experiencing low pressure and need to recharge your system.
The force that causes turgor pressure is osmosis.
Check for leaks in the intake manifold or a poor fuel pressure situation.