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R33 Gts25t Problems

AzN
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AzN Collaborator

AzN

Posted
Posted

Hey guys,

I just bought a GTS25t and I am having a few problems. Firstly when I turn the key to ACC, there is a clicking noise that is coming from the heater vents (I think). The noise last for 12 seconds and goes away. This only happens at the start when I turn my car on acc. Secondly, I have a fluctuating idle problem. On a cold day, when I start the car, it will go around 900rpm then fluctuate then stall. If I tap the accelerator, the revs will climb up to 1500 rpm and fluctuate but not stall. When the car is warm, the idle will fluctuate between 900-700rpm and sometimes it will run good.

I've already tried cleaning the AAC for the idle problem and it helped the idle a bit but this problem still persist.... I am cleaning the AFM tomorrow and I noticed that my air filter was DIRTY as f**k.

Anyone know how to fix these problems?

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https://www.sau.com.au/forums/topic/263796-r33-gts25t-problems/
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eeiko321 Experienced

eeiko321

Posted
Posted
Hey guys,

I just bought a GTS25t and I am having a few problems. Firstly when I turn the key to ACC, there is a clicking noise that is coming from the heater vents (I think). The noise last for 12 seconds and goes away. This only happens at the start when I turn my car on acc. Secondly, I have a fluctuating idle problem. On a cold day, when I start the car, it will go around 900rpm then fluctuate then stall. If I tap the accelerator, the revs will climb up to 1500 rpm and fluctuate but not stall. When the car is warm, the idle will fluctuate between 900-700rpm and sometimes it will run good.

I've already tried cleaning the AAC for the idle problem and it helped the idle a bit but this problem still persist.... I am cleaning the AFM tomorrow and I noticed that my air filter was DIRTY as f**k.

Anyone know how to fix these problems?

i dont think the air filter is soley the problem..... try running it withought the air filter.....if it improves then you got your answer....

but i think its more than that.

check all vaccume hoses as well whilst your at it.

let me explain this....... if your car is stalling whilst COLD.....immediately after starting..

This kind of problem often means the engine is not getting enough fuel or too much air.

A cold engine needs a faily rich mixture. and idles smoothly once it warms up. this is why there is an automatic Choke on your car (when your revs drop, the choke is down).

the causes can be either....engine vaccume leak..broken hoses, leaks around the intake manifold or gaskes..leaks around the EGV and PCV valves.

a dirty or defective air flow sensor can upset the air/fuel mixture..... causing all sorts of stalling and idling problems.... you can clean this out with special spray for exlectronics circuit. by cleaning with this aerosol can, can cure the problem withought replacing.

also the Throttle body has a throttle position sensor.... you need to take the throttle body off and clean it with carby cleaner.

(sometimes the sensor/solenoid needs replacing if its faulty......you will know this if the carby cleaner doesnt help)

The map sensor monitors the Air/vaccume flow.... this could be a problem as well.....there are ways to test this.....but this is a bit technical.

The temperature sensors can cause the car to run too rich or too lean....

there are 2 sensors that could come into play for this...... 1.) the Coolant sensor & the air temperature sensor...

the worst case scenario for this idling problem is the worn pistons or piston rings......

but from what your telling me.....it doesnt sound likely.

check your spark plugs as well whilst you have your throttle body and plenum chamber/manifold off....make sure they are not fouled...

let us know how you go.....this should give you an idea

eeiko321 Experienced

eeiko321

Posted
Posted
maybe atmospoheric blow off valve?

blow off valve?! he just told you its COLD STARTING ISSUES>......which means the fuel mixture is WRONG!!!!!!!!!!!!!!!!

dude, you shouldnt give advice if your not sure...

inaccurate advice can cause people... time, money & frustration....

dnbosiris Enthusiast

dnbosiris

Posted
Posted
Hey guys,

I just bought a GTS25t and I am having a few problems. Firstly when I turn the key to ACC, there is a clicking noise that is coming from the heater vents (I think). The noise last for 12 seconds and goes away. This only happens at the start when I turn my car on acc.

wow, my R33 does *exactly* the same thing. I have NFI what it is though....

AzN Collaborator

AzN

Posted
  • Author
Posted
blow off valve?! he just told you its COLD STARTING ISSUES>......which means the fuel mixture is WRONG!!!!!!!!!!!!!!!!

dude, you shouldnt give advice if your not sure...

inaccurate advice can cause people... time, money & frustration....

When the car is warm, sometimes the idle is fine but sometimes it fluctuates between 900-700rpm... Very annoying at intersections...

Will change the air filter cause it's dirty as f**k and clean AFM today.

grigor Rising Star

grigor

Posted
Posted
inaccurate advice can cause people... time, money & frustration....

That's for sure. Poor bugger is going nuts looking for his air temp probe and wondering what the MAP sensor has to do with anything, apart from the boost gauge in the dash.

He's cleaned the obvious AAC valve and finding the air reg is a bit of a mission. He's got fluctuating idle at intersections so I'd guess it's warmed up by then yet he still has the problem.

Certainly check all your vacuum hoses but don't go pulling the plenum apart or throttle body and TPS off, find a competent workshop. It will save you $$$

That_timothy Community Regular

That_timothy

Posted
Posted
wow, my R33 does *exactly* the same thing. I have NFI what it is though....

I'm not even kidding, sitting here thinking EXACTLY the same thing.

Somebody told me that having an aftermarket ecu was going to be the problem with the idle spin, and coincidentally a friend's brother has just advised me to install an A'PEXi Power FC, which I'll probably do this week. Does this sound like it'll fix my problem?

'Twas pretty embarassing pulling into the carpark for the cruise last night and having my car choose that specific point at which this would happen regularly :wacko:

Benzino33 Experienced

Benzino33

Posted
Posted
<br />Hey guys,<br /><br />I just bought a GTS25t and I am having a few problems. Firstly when I turn the key to ACC, there is a clicking noise that is coming from the heater vents (I think). The noise last for 12 seconds and goes away. This only happens at the start when I turn my car on acc. Secondly, I have a fluctuating idle problem. On a cold day, when I start the car, it will go around 900rpm then fluctuate then stall. If I tap the accelerator, the revs will climb up to 1500 rpm and fluctuate but not stall. When the car is warm, the idle will fluctuate between 900-700rpm and sometimes it will run good. <br /><br />I've already tried cleaning the AAC for the idle problem and it helped the idle a bit but this problem still persist.... I am cleaning the AFM tomorrow and I noticed that my air filter was DIRTY as f**k.<br /><br />Anyone know how to fix these problems?<br />
<br /><br /><br />

Farrk I get that clicky noise as well when I turn my car on to ACC, dunno wat it is though. My idle's been screwed too, I replaced the IAC valve and the tps and repositioned the tps, idles alright now, but plays up every now and then. Im cleaning ou my AfM tomorro, so hopefully that solves everything. Good luck with yours.

  • 3 months later...
boiracer Grand Master

boiracer

Posted
Posted

i had a clicky noise too when i turn the car to ACC, wasnt so much in the dash, but sounded like it was in the roof......

didnt take me too long to figure out it was the electric aerial going up.....LOL :D

i felt real stupid after noticeing as it was starting to worry me.

i have an excuse though, no car ive ever owned before has had any electrical wizardry in it, a stereo was as much as ive ever had.

  • 1 year later...
t_revz Grand Master

t_revz

Posted
Posted

i got the same clicky noise, and mines definately comin fron the centre heater vents, i aint got no ide what it is, everythins workin so i dont try fix it "touch wood" lol

http://www.skylinesaustralia.com/forums/topic/301992-diy-fix-cluncking-noise-in-dash-r33s/page__hl__clicking

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