oil pressure C13 Accert help needed

A few days ago, my 06 c13 accert in dash gauge started reading a little higher than normal oil pressure, thought it was odd. Truck runs fine and oil temp is totally normal. Now, the gauge is reading abnormally high like 60psi at 1200 rpm, and it's fluctuating oddly. Is my oil pressure sensor in the block going out? Today when I turn the key to the on position and let my gauges sweep and do the cpu check and then the gauges display what they read, my oil press gauge was reading 5psi once, then 10 and then 20psi all with the engine turned off and the key on after it does the sweeping thing. Also when I fire it up the gauge needle slowly rises to the reading instead of reacting quickly like normal.

2006 peterbilt 385 daycab with 06 cat c13 accert 430hp. No check engine light, runs fine. No warning light on on the gauge, and my truck only has 286k miles on it. Only a few thousand miles into my oil change also so it's not like the oil is brand new nor old. Is it my oil pressure sensor sending unit? What's the part # for that? And where is it located?

any insight is appreciated.

Thanks

 

I spoke with peterbilt they said there are two oil pressure sensors? One is "oil pressure sensor IVA)intake valve actuator)" and one is on the driver side on the block

any help

 

Ah good idea, will try that tomorrow. Does my problem sound like that's what it is? Also, any tips/how to replace sensor? I see it has plug on top of it. Then a little house runs off of it as well