Crazy Oil Pressure at all Rpms

[93jdmlaser]

I was last nite and I noticed and I got on it the one time my oil pressure went nuts and up to between the H and the line right before it. I pulled over and sat for a while. Went driving back home and it kept staying right by the H. I got it home and looked under the hood and I wasnt leaking anything. No coolant in my oil or oil in my coolant. My bs shafts are removed. I could oil in my comp housing which has to be from the crazy oil pressure pushing it past the seals. I let it sit over nite and started it up. Let it warm for a minute and put into gear started to back out and the pressure went right up to near the H again so its sitting. I have no idea what is causing this. Please help. I know its not the stock gauge there is a problem somewhere.

 

[luv2rallye]

Bad oil pressure sender - not uncommon. Replace it.

 

[Defiant]

Same guess here.

 

[93jdmlaser]

Yea I was thinking that too but I could see that all the extra pressure pushed the oil passed the seals in the turbo and into the comp housing. I searchd on here for anything like this but didnt find any answers. If I missed thread on it let me know and ill check it out. Thanks

 

[93jdmlaser]

I let the car sit since my last post since we got some snow. Still when I start it up it goes the normal spot and starts slowly going up but once you put it into gear and go to move it just goes up to almost at the H just after the line that is before it. Im not sure what could cause this high pressure. Other then a faulty guage is there anything that can cause the oil pressure to be high all the time. Thanks for the help I want to figure this out. I hope nothings wrong with the motor.

 

[BISHILVR]

I let the car sit since my last post since we got some snow. Still when I start it up it goes the normal spot and starts slowly going up but once you put it into gear and go to move it just goes up to almost at the H just after the line that is before it. Im not sure what could cause this high pressure. Other then a faulty guage is there anything that can cause the oil pressure to be high all the time. Thanks for the help I want to figure this out. I hope nothings wrong with the motor.

A bad pressure regulator COULD cause the problem, but replace the sender first.

 

[joosdawg]

not to jack this thread but what is the highest your supposed to see your oil pressure go up to if you have an aftermarket gauge? i myself have an autometer oil pressure gauge becuase my dash one crapped out. Somtimes it shows all the way up to 100 idk if thats ok or not.

 

[93jdmlaser]

Under boost its not bad for the pressure to go up but I am having this problem at idle and all rpms.

 

[93jdmlaser]

Starting to take away possibilities. The Pcv checked out ok

 

[Defiant]

Starting to take away possibilities. The Pcv checked out ok

PCV valve has nothing to do with oil pressure, but I'm glad yours is working well.

 

[93jdmlaser]

Comp tested the motor and it came back perfect. Put an autometer gauge in and getting normal oil pressure when warmed up now. When I rev the motor the pressure jumps all the way up to near 100. It wasnt fully warmed up but enough to get the pressure down to 35 at idle. Is this normal for it to jump so much? Thanks

 

[93jdmlaser]

Those psi numbers were from my autometer gauge, I dont use the stock one anymore. My ecu is a 90 just had it rebuilt a few months back its still holding up fine.

 

[dets]

when i first got my dsm, my oil pressure gauge was going crazy as well.


So i took out the sender and hooked up a pressure gauge to it. Took me a while to find the right fitting but i remember that after discussing the problem with a couple other people, i found that its not uncommon to see 80-100 PSI at WOT.


It my coupe quattro i see 5 bars of pressure and thats just in an NA 20V!!

High pressure = low volume

Pressure has a direct relationship with volume. Thankfully, these 4's have the ability to run at high pressures without being too dangerous. I was thinking small things like a butcher knifed crank or honed out pump's would be help, but i've never tested it before.

 

[93jdmlaser]

Yea I just wanted to make sure it was safe to see those oil pressure when on it. The oil pressure at idle is fine just wasnt sure how much it should go up when you give it gas.