This is just a note that replacing the oil pressure sender solved a quick onset problem of oil pressure much lower on average than previously, fluctuating from 0 Bar up. With the new sensor, it stays near or at 3 Bar. Thanks to the group for quickly leading me to the right solution based on my symptoms.

Steve

__________________
'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7