Need some help/insight

Any of you guys have an idea why my oil temps show they are running ~10-20 higher after replacing temp/level sensor? My avant’s stopped working and I replaced it with OEM hella unit. Now dash temp gauge is reading higher than before replacing?

Additional info includes it being a leaky mess. All top end seals/gaskets are being replaced next week along with timing belt job.

Also, pcv system is “updated” OEM replacement maybe 6 or more months ago. Thing is it did nothing to slow the leaks. They have got worse. I sure hope I don’t blow out the new seals prematurely due to some underlying crankcase pressure issue. I don’t get why after replacing the pcv breather assembly it is still hemorrhaging oil?! And by that I mean actually leaving oil stains on driveway and smoking a lot. All in the engine bay. I do not notice any from the exhaust.

Thanks in advance for some ideas/help.