300zx problem. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

SkateOrDie · 11-19-2011, 11:59 AM

Is it normal for my 300's psi oil gauge to be at 60? A couple days ago it was at 0, yesterday at 20, now 60?! What's wrong? Also when I start the car it's at about 1500 rpms, why's it accelerated?

ze12o · 11-19-2011, 12:57 PM

stock gauge? or aftermarket?

Does it stay at 1500 after it warms up?

SkateOrDie · 11-19-2011, 03:14 PM

It's the stock one
Nah it's at 2k rpms when I start and 1500 when it's warmed up.

F3600 · 11-20-2011, 10:22 AM

oil pressure sensor is frequent problem on 300zx, mine would do the same.
Just changed it or install an aftermarket one.

Every car have a 'cold start' function. A valve give it more air so it idle higher for 1 or 2 min. It should be idling at 850 rpm when hot if its not, something else is wrong.

Buy yourself an Shop manual for your 300zx , you will need it

articdragon192 · 11-20-2011, 11:55 PM

Idle issue could be several things. TPS, a vacuum leak somewhere, AICV might be acting funky

Walperstyle · 11-21-2011, 12:02 AM

if your oil is cold, it might have a higher pressure because it doesnt move through your lines well enough

Remember, its not good to have too much oil pressure. A little pressure is fine, and it can fluctuate a little.

11-19-2011, 11:59 AM	#1
SkateOrDie Leaky Injector Join Date: Oct 2011 Location: Oxnard Age: 29 Posts: 50 Trader Rating: (0) Feedback Score: 0 reviews	300zx problem. Is it normal for my 300's psi oil gauge to be at 60? A couple days ago it was at 0, yesterday at 20, now 60?! What's wrong? Also when I start the car it's at about 1500 rpms, why's it accelerated?

11-19-2011, 12:57 PM	#2
ze12o Zilvia FREAK! Join Date: Jan 2008 Location: NY Age: 34 Posts: 1,005 Trader Rating: (26) Feedback Score: 26 reviews	stock gauge? or aftermarket? Does it stay at 1500 after it warms up? __________________ ಠ_ಠ

11-20-2011, 11:55 PM	#5
articdragon192 Post Whore! Join Date: Jan 2005 Location: West covina Age: 39 Posts: 6,792 Trader Rating: (9) Feedback Score: 9 reviews	Idle issue could be several things. TPS, a vacuum leak somewhere, AICV might be acting funky __________________ Need help? Click here Still stumped? Try this Can't find what you're looking for? Here you go.

11-21-2011, 12:02 AM	#6
Walperstyle Nissanaholic! Join Date: Nov 2004 Location: Alberta, Red Derp Age: 44 Posts: 1,729 Trader Rating: (0) Feedback Score: 0 reviews	if your oil is cold, it might have a higher pressure because it doesnt move through your lines well enough Remember, its not good to have too much oil pressure. A little pressure is fine, and it can fluctuate a little. __________________ KA-T ORG-Function over Flush

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11-19-2011, 03:14 PM	#3
SkateOrDie Leaky Injector Join Date: Oct 2011 Location: Oxnard Age: 29 Posts: 50 Trader Rating: (0) Feedback Score: 0 reviews	It's the stock one Nah it's at 2k rpms when I start and 1500 when it's warmed up.

11-20-2011, 10:22 AM	#4
F3600 Zilvia Junkie Join Date: Apr 2002 Posts: 364 Trader Rating: (0) Feedback Score: 0 reviews	oil pressure sensor is frequent problem on 300zx, mine would do the same. Just changed it or install an aftermarket one. Every car have a 'cold start' function. A valve give it more air so it idle higher for 1 or 2 min. It should be idling at 850 rpm when hot if its not, something else is wrong. Buy yourself an Shop manual for your 300zx , you will need it