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

    • Wife wanted basket things in the wardrobe in our temporary house. Thought about ripping our the wardrobe and fitting the entire IKEA set, but it's a temporary house and we want to move in a few years. So IKEA advertises this as a 50cm unit, however the actually basket and rails measure 46cm wide. Only issue was depth, IKEA stuff is quite deep, where as the builder special junk is super shallow at less than 40cm. Send it, chopped the rails, then offset the mounting holes, job done, happy wife, less shit scattered all over the bedroom. Did the same to the other side too. Also drove the Skyline shit box today, dropped off oil at Supercheap Auto. I didn't realise they only now take max 2x bottles per visit. I visited 2x Supercheap Autos.  
    • I've seen similar actually in my situation. You never know what tables are attempted to be used when the car thinks it's -99C or +200C. The fail state is not usually that extreme but you know what I mean - it was in my case though! This is where being able to read all the sensors is useful cause you see this stuff really quickly.
    • The above is very important. However as long as you keep timing relatively low, it's plausible to make your own knock ears and plausible to learn to tune with a modern ECU that can do wideband O2 correction like a boost controller. I mean if you only have one viable road to even drive the car on, learning to tinker to this level may be worth doing given you can't do much else with the car...?
    • I find the fact that the rear plate has to be bent inwards at the rear not so bad: but the front is just awful: It's like come on. (these are my very old, now retired/turned in plates) TBH it is a lot of money to fix a minor issue, the fact I said "I'll never really spend the money on doing this" is why people ended up buying them as a gift for a 'car guy' who can be hard to shop for.. for car guy things.
    • I just bent the ends of my premo plates. It even went through Regency like that after the engine conversion and the inspector (a great bloke!) just squinted his eyes and said "I didn't see that". Plates, and how they look, are just something that have zero importance to me.
×
×
  • Create New...