A leak, a poor connection or it is burning it.
YES
If you are losing coolant, you probably have a bad cylinder head gasket. Too much coolant system pressure will drop your engine oil pressure.
check your pvc. If that is not working your engine will blow the oil out somewhere.
Yes, it can. It measures the engine oil pressure and if it fails, the pressure can come through it losing oil.
Check your exhaust for blue smoke, you may need a valve job or new rings.
If your Lexus RX 330 is losing oil, it could be due to several issues such as worn engine seals, gaskets, or piston rings. Another possibility is oil leaks from the oil pan or valve cover. Regularly checking the oil level and inspecting for leaks can help identify the problem. It's advisable to have a mechanic diagnose the issue to prevent potential engine damage.
Your engine could be losing power and your check engine light coming on for many reasons. It could be your spark plugs needing to be changed. Your fuel pump or fuel filter could be clogged or starting to wear out, or your engine oil is to low.
If you are not seeing any leaks, it is possible that the gasket is leaking on the bottom of the intake manifold, causing the engine to burn the oil.
This sounds like bad news. The coolant could be leaking into your engine and mixing with the engine oil, then cooking off. A simple test can tell if there's water in your oil.
I'm not a mechanic / technician but the first thing I would check is the engine oil ( see if the engine oil looks different than it does normally , milky looking maybe , or if the oil level has gone up ) that would indicate the engine coolant is leaking into the engine oil from perhaps a bad head gasket
Sounds like engine coolant getting in crankcase, could be an intake gasket going bad.
old gaskets, replace asap or risk losing your engine or transmission or some other catastrophic repair