okay going to assume you just don't know much about engines⦠yes that is normal. Oil pressure. Toooo much isn't good thought but you will be fine
Drive around with it off... Your car will go faster...
.?
That is crankcase pressure. Its normal to have some but an excessive amount can be down to worn compression rings or your PCV valve is stuck closed.
Knowing how much is excessive is down to experience , but if your concerned , carry out a compression test , and maybe check the PCV valve is working.
The car has been parked for a long time and I have been starting it here and there but no revving jus letting it idle. Is it best to replace the PCV valve ??
Just take it out and clean it, that should do. Certainly worked for me!