Oil Pressure

[Just_Rb]

what should the standard oil pressure gauge be reading on an internally standard rb25det r33 s2 when cold and when warm? Asking this because i think my oil pressure sensor is playing up. was at the lights and it just dropped to zero then slowly came up but keeps reading lower than before. what else could be the problem?

[Mayuri Krab]

Should be something like this:

During initial start up should read ~6kg/cm^2 when engine is cold.

After it warms up it should be around 2 - 6kg/cm^2, depending on driving load. I found mine idles at 2kg/cm^2 when engine is warm & goes up to 4kg/cm^2 under normal A to B driving.

[murrayis]

Mine sits when cold are 118psi and when warm driving along about 45 - 50 psi.

[T-Rex]

Well my R32 GTR doesn't budge over 4 no matter how im driving, i think the sensor or gauge is stuffed!

[Moodles2]

Someone else posted this in another thread, good thing to keep saved somewhere.

[Mayuri Krab]

Someone else posted this in another thread, good thing to keep saved somewhere.

hhmm... says on that chart that the idle pressure should be 1 kg/cm^2 for a RB25DET.

My car seem to idle at the 2kg/cm^2 mark, the gauge always stay on the line between the 0 & the 4 (see picture), unless that line means 1 & not 2?

needle is at the read arrow mark when car is in idle (warm engine).

The other 2 values given in the table (2000 & 6000rpm) seems consistent with my car.

I'm getting paranoid now, does that mean I have a pressure problem as well? Or just inaccurate gauge?

[Moodles2]

Idling at 2kg/cm^2 isn't necessarily bad, if the oil is cold expect the pressure to be higher than normal

[SLAPS]

I occasionally catch my stock gauge on 0. Watch it long enough while its idling away and all of a sudden it flings to 2kg/cm2.

Get an aftermarket on it.

[meet07]

Mine is the same as murrayis. my motor came over to the states with 89km on her. Never changed the oil pump.

Edited June 14, 2009 by meet07

[jangles]

stock guages seem to stuff up, ive had two that were both stuffed, one was high, one was low

Edited June 17, 2009 by jangles