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0 After testing with an oil pressure tester; 30-35 psi at idle and around 80-95 psi at 3000 rpm. Added some iv dye to oil and it looks like my drain plug is leaking a little. Need to replace the washer. Even with the oil pressure sensor unplugged I still got random oil lights. Looks like I’ll...

1990 Ls400 180k miles. Recently changed my oil and started having oil pressure issues. Once the car is warm, the low oil/ low oil pressure light comes on. Before it had only came on if I was a little past the oil change and was low, but only if I was going fast. This time it came on right...