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525i M20: 1990 525i m20 oil pressure goes down when rpm goes…

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1990 525i m20 oil pressure...
1990 525i m20 oil pressure goes down when rpm goes up,oil pressure light comes on,when rpm goes up light goes off when rpm comes back down.
Submitted: 3 years ago.Category: BMW
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Answered in 2 days by:
6/24/2015
BMW Mechanic: MartinsMotorSport, BMW Technician replied 3 years ago
MartinsMotorSport
MartinsMotorSport, BMW Technician
Category: BMW
Satisfied Customers: 87
Experience: BMW Group Certified Technician, quilified top in class, 8 years exp, Motor Mechanic Trade Quilified
Verified
Hi when did this problem start.Ive had the oil filter housing missing an o ring where the filter fits into. Please check all o rings are in place and on the shaft where the filter fits.Let me know? :)
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