First off the oil pressure gauge indicates normal mid range at 7 psi so it’s pretty much useless as a indicator of good oil pressure. May want to look into mechanical gauge hook up to verify your concern.
My guess is at 190,000 miles, your timing chain guides have started to break apart and fall into your oil pan and partially clogging oil pickup tube.
I personally would replace the oil pressure sending unit because so cheap. If problem persists with new sensor, I would then look into a complete Timing job or engine replacement.
My guess is at 190,000 miles, your timing chain guides have started to break apart and fall into your oil pan and partially clogging oil pickup tube.
I personally would replace the oil pressure sending unit because so cheap. If problem persists with new sensor, I would then look into a complete Timing job or engine replacement.