When I start my 1988 VW Cabriolet with a cold engine, the BAR gauge shows the oil pressure pegged to the right. After the engine heats up, the oil pressure indicated drops under 2 if I am at 2000 to 2500 rpm, and the low oil pressure light comes on along with the warning buzzer. If I increase the rpm to 3000 or more, the reading on the BAR gauge increases and the warning light and buzzer go off. Any thoughts on what's going on?

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i agree it could be,if you havent changed the oil and filter lately do that first using the correct oil grade if that fails let me know then we can go a step further

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go to cliffordperformance.com. read the info and decide what your budget will allow you to buy. if you dont want to tear the engine down, i would suggest that you go on e-bay and get your self a 4barrel intake and a 390cfm carb. add a set of headers and your engine will breathe better,run faster and believe it or not, get better gas mileage than your getting now.

SOURCE: what is the correct oil pressure on a 1988 vw cabriolet

a plunged oil filter will do this so will a bad oil reg.
try changing your oil and get a new filter
also you may have had the incorrect filter on it "some shops do this"

Greg Bernett

• 2993 Answers
• Posted on Aug 25, 2009

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No....the rpms differ from engine to engine and from manufacturer to manufacturer. RPM's are always higher at higher speeds.

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Need a fuel distribution box for a 1988 vw cabriolet "Karman" Gas motor.