2005 Nissan 350z. 200K miles. all of a sudden the oil pressure went WAY UP. (Down I would understand) Any IDEAS WHY ? (Not mine) Thanks
Stubby79
FEB 05, 10:15 PM
electrical/sensor issue?
otherwise...something's plugged up. And that'd be bad, mmmkay?
seajai
FEB 06, 05:51 AM
You could just replace the oil pressure sender and see what happens. Otherwise removing the sender and attaching a mechanical gauge to see what the pressure really is would be the way to test the accuracy of the sender. High pressure on a mechanical gauge could mean a stuck or malfunctioning pressure regulator valve.
James Bond 007
FEB 07, 10:11 AM
On some cars it will read 0 psi, Nissan is diffrent.Its a bad oil pressure sensor.Read the comments on this youtube video.Check out the other youtube videos.I beleave their talking about the oil sender ??? Unless you have both a oil pressure sensor and an oil sending unit. https://m.youtube.com/watch?v=3tvB_mlECrI
[This message has been edited by James Bond 007 (edited 02-07-2015).]
2.5
FEB 09, 05:05 PM
Do those engines have sludge issues? What oil is being used?
kristinagalloway
FEB 11, 11:49 AM
An oil pressure gauge can give you an excellent indication of the health of various systems in your engine. The key is to establish baseline readings when your engine is healthy, and then be aware of any changes you see over time.
