Jump to content
SAU Community

Recommended Posts

Hey guys I dont know if this would pose a problem or not but lately Ive noticed that the oil pressure guage in the car doesnt read right?? either that or theres a bigger problem:

most of the time it will sit comfortably at 2 bar on idle - but occasionally it will drop down to 1 bar on idle (it was less than this the other day!)? when driving it sits lower also but the car runs fine, then I can turn it off and back on or keep driving and it seems to correct itself... I checked the oil and its probably slightly overfilled if anything, oil temp doesnt increase, and it doesnt seem to be eating it - any ideas?

Link to comment
https://www.sau.com.au/forums/topic/76406-oil-pressure-irratic/
Share on other sites

you will find that erratic signals display on the gauges are fairly common on nissans.

If you suspect there really are no problems with the engine, id say its most likely a faulty oil pressure sender unit. I had the same problem with the pressure sender unit on my 32, my 33 had problems with the tacho gauge, so im guessing there may be some problems with 34's also

cool. yeah I certainly hope theres no problem with the engine!! it seems to run ok I would have thought if there was a pressure problem there the engine wouldnt run as well as it should.. do you think its possible that the oil pump could have a problem?? sometimes I have to give it a bit of a thrashing to get it to come back to normal again

mine is very similar

Every now and again when the engine is warm, I turn the car on and the oil pressure sits at 1 or even less.

Give the throttle a blip and it seems to come good - goes up to 2 at idle.

Also, every now and again, while driving it drops down very low, then comes up again.

Doesn't matter what the driving style.

Can't imagine it is an engine problem, probably the sender unit.

I actually kept having the same problems on my line. I got a Trust GReddy oil cap, from autobarn for like 95 or something. Surprisingly it actually fixed my oil pressure problems that were reading on the gauge. It now sits where it should...may be worth a shot for u guys

  • 2 weeks later...

i just drove 2500 kms in two non consecutive days, and on the trip down it was at 2kg/cm and then 1/4 into trip it is sitting on 1kg/cm ! I was also concerned having just got the car a week ago !

But it didn't bother it ..... on the 1250km trip home it never moved off 2kg/cm ...... so i assumed a intermittant sender or dash fault....

Glad to have this confirmed !!

Gary

  • 3 weeks later...

mine started doing it last night. i guess with everyone else thats having this trouble mine will be ok. Any idea how much a new sender unit will cost and if its easy to install?

next time i go to my car ill check for any abnormalities, ruptured hoses or anything.

  • 1 month later...

Is there any concensus on what the stock oil pressure guage should read (on an R32 GT-R)?

My car has been off the road for awhile so I've forgotten exactly what it was awhile ago, but I seem to recall it varied between about 2 and 4 on the guage. Today I noticed at idle it sits at about 1 (its hard to guess given the markings are 2, 4, 6 and 8 IIRC), and when driving at about 2. If I gave it a boot, it got towards 3-ish...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I got back to Japan in January and was keen to get back on track as quickly as possible. Europe is god-awful for track accessibility (by comparison), so I picked up a first-gen GT86 in December just to have something I could jump into right away. The Skyline came over in a container this time and landed in early January. It was a bit battered after Europe, though—I refused to do anything beyond essential upkeep while it was over there. The clutch master cylinder gave out, and so did the power steering. I didn’t even bother changing the oil; it was the same stuff that went in just before I left Japan the first time. Naughty. Power steering parts would’ve cost double with shipping and taxes, so knowing I’d be heading back to Japan, I just postponed it and powered through the arm workout. It took a solid three months to get the car back on the road. Registration was a nightmare this time around. There were a bunch of BS fees to navigate, and sourcing parts was a headache. I needed stock seats for shaken, mistakenly blew 34k JPY on some ENR34 seats—which, of course, didn’t fit—then ended up having the car’s technical sheet amended to register it as a two-seater with the Brides. Then there’s the GT86. Amazing car. Does everything I want it to do. Parts are cheap, easy to find, and I don’t care what anyone says—it’s super rewarding to drive. I’ve done a few basic mods: diff ratio, coilovers, discs, pads, seat, etc. It already had a new exhaust manifold and the 180kph limiter removed, so I assume it’s running some kind of map. I’ve just been thrashing it at the track non-stop—mostly Fuji Speedway now, since I need something with higher speed after all that autobahn time. The wheels on the R34 always pissed me off—too big, and it was a nightmare getting tires to fit properly under the arches. So I threw in the towel and bought something that fits better. Looks way cleaner too (at least to me)—less hotboy, less attention-seeking. Still an R34, though. Now for future plans. There are a few things still outstanding with the car. First up, the rear subframe needs an overhaul—that’s priority one. Next, I need to figure out an engine rebuild plan. No timeline yet, but I want to keep it economical—not cutting corners, just not throwing tens of thousands at a mechanic I can barely communicate with. And finally, paint. Plus a bit of tidying up here and there.  
    • Nope, needed to clearance under the bar a little with a heat gun, a 1/2" extension as the "clearancer", and big hammer, I was aware of this from the onset, they fit a 2.0 with this intake no problems, but, the 2.5 is around 15mm taller than a 2.0, so "clearancing" was required  It "just" touched when test fitting, now, I have about 10mm of clearance  You cannot see where it was done, and so far, there's no contact when giving it the beans Happy days
    • It's been a while since I've updated this thread. The last year (and some) has been very hectic. In the second-half of 2024 I took the R34 on a trip through Germany, Italy, France and Switzerland - it was f*cking great. I got a little annoyed with the attention the car was getting around Europe and really didn't drive it that much. I could barely work on the car since I was living in an inner-city apartment (with underground parking). During the trip, the car lost power steering in France - split hose - and I ended up driving around 4,000kms with no power steering.  There were a few Nurburgring trips here and there, but in total the R34 amassed just shy of 7,000kms on European roads. Long story short, I broke up with the reason I was transferred to Europe for and requested to be moved back to Japan. The E90, loved it. It was a sunk cost of around EUR 10,000 and I sold it to a friend for EUR 1,500 just to get rid of it quickly. Trust me, moving countries f*cking sucks and I could not be bothered to be as methodical as I was the first time around.
    • I assume clearances were all a-okay?
    • Shock tower brace is in +5Kw....LOL  
×
×
  • Create New...