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Old 03-04-2013, 02:56 AM   #1
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Default Momentary oil pressure change on sudden lift

Hello,

I have been noticing a sudden decrease of oil pressure (duration < 1sec) by ~5-10psi when I suddenly lift off the throttle. After a moment the oil pressure comes back to where it was. This happens even while cruising on light throttle. When I lift off slowly I don't see the decrease.

The engine is a 01 VVT running on MS3.

Any ideas on what could be going on?

Thanks,
Raj
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Old 03-04-2013, 11:59 AM   #2
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Factory oil pressure senders jump around when the engine knocks.
A sudden lift sometimes makes a noise (tranny?) that sounds like knock...
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Old 03-04-2013, 12:44 PM   #3
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I don't hear any noise when I lift. I will pay more attention to the noise next time I get it out.

-Raj
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