Not The Normal Oil Pressure Issue.

[Longun 1]

My oil pressure is being funny.

 

Its slighty high (above third white line) when cold and get higher with revs (between 3 and 4th line)

 

Then sits lower with normal running engine temp (between third and second line). Also goes down when warm and you going up the rev range (can go as low as last white line)

 

Oil level is fine. I've done a few searchs and am thinking a possible over fueling issue thinning the oil. But would that explain the rise in pressure when cold?

 

Any ideas what else might cause this? Possible connection but I can't see why it would be effected by temps?

 

Cheers in advance

[Anthony 1,003]

With oddball sounding oil pressure issues, it's always worth swapping the sender first and foremost (and cleaning the connector on it and the brown multiplug)

 

Oil pressure is always higher when cold than when warm as the oil is thicker when cold, but oil pressure shouldn't go down when you rev it. I've seen faulty senders cause this before, so definately worth swapping that first

[Longun 1]

Cheers, sender ordered will give it a try and keep you posted. Oil change was done a few weeks ago but I'm going to do another as well just incase.

[jonah 1]

Could also be a bad connection in the wire to the sensor, this goes through the brown multi-plug in the engine loom that is infamous for corroding, I got a 25% increase in my oil pressure reading just by cleaning up this plug!

[Guest yaztromo]

All what you've described sounds perfectly normal behaviour. Nothing to worry about.