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what is a stock GTI-R engine idle..
i just installed mine..
my idles are high like.. 14-1300...
if i curculate the air (open the thermostat fully ) it might dropp too 1200.
turbo vacum stays at 19.
this is a stock gtir set up in a FWD NX.
im planning on beefing up the rad. and adding a hoood vent.
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Larry Low
92 Pulsar GTI-R BLK Gab upper strut brace, Cusco 4pt Front underbrace, front/rear skid plate, stock rear rollbar, full tein coilover suspension , tein camber plates and thats about it for now. Pm me if you need GT Turbos or ano other type.
The factory spec is 850+/-50rpm.
Most on the GTIROC forum complain about high idle speed problems.
Mine's about 950rpm.
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1991 GTI-R
"Your race car should be easier and more pleasant to drive than your street car. If it isn't, then someone is doing something wrong."
-- Carroll Smith (1932-2003)
thank you, i loosened it alittle bit and it went down a bit.. but i kinda dont want to loosen it again casue i think its the rad.. i still have a stock NXrad.
I doubt that your rad is the case, because if your throttle cable is too tight it always pulls on the throttle body to open it (and then the idle goes up because it's not really idling). You can loosen it until the pedal shows a bit of play, then tighten it just a little bit more so that the pedal becomes firm/responsive.
Mine sits at about 1k +/- 50. She’s temperamental some mornings so I have her set a little higher then 950. I have the same set up as you basically: GTi-R ECU & MAF. Have you adjusted your idle screw? It’s on the intake manifold right next to the actual intake. It’s sometimes covered up by a small piece of rubber.
Adjusting this will lower or raise your idle speed some. Also, once I set the idle after my swap, I had to lower it once or twice 'cause the as the ECU relearned things it seemed to smooth out a lot of my idle problems.
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-98' 200sx GTi-R, FMIC, 3" downpipe/cat/piping/ and muffler, and some other bells and whistles
-96' B14 left stock for the daily drive... also expired
-95' S14 soon to be RB26ed once I get off my ass
-91' S13 w/ SR20DET black top... expired
-89' B12 SE... expired
Sorry it took a bit to get these pics, I was out and on top of that its raining down here so sorry for the poor quality pics. Hope these help. Like I said, it might be covered up by a small rubber hose or a protective cover of some type. And I believe counterclockwise raises the idle and clockwise lowers it, but dont quote me on that. Good luck and let us know how it goes.
Old skool HKS SQV. I always thought the old skool ones were sexy looking so I went through hoops to get a brand new one a few years ago. I run it open air, no problems with it. I have an alternet face for it so I can recirculate it if I want, but honestly I dont mind showing off sometimes.
it sounds like your cold idle valve is stuck open, i had the same problem, idle at 1200 no matter what. replaced the valve and its now 900 all the time.
its mounted under the intake manifold, its square and has to big hoses going to it and t coolant hoses...
Here's something I wrote for gtiroc about the common causes of high idle on Pulsars -
1 : IAS Idle Air Screw. Its part of the IAA ( Idle Air Adjust unit which sits under the right hand side of the plenum chamber ). Used for setting the base idle speed. Is a slotted screw on the side of the IAA and can be seen under the plenum chamber.
2 : AAC Auxiliary Air Control valve. Also part of the IAA unit, this is the main solenoid that the ECU uses ( in conjunction with the Throttle Position Sensor ) to regulate the idle speed. Looks like a round tube fixed onto the IAA unit.
3 : FICD Fast Idle Control Device. Also part of the IAA unit, designed to raise the idle speed whenever the engine comes under heavy load, ie, when aircon is switched on etc. Looks like a small round tube with hex shaped sides, screws into the IAA right next the AAC.
4 : IAR Idle Air Regulator. Sits underneath plenum, works like an automatic choke ( but just for air ). Always switches on whenever you start the car and works on temperature, cold means open ( higher idle ) and gradually closes when intake heats up ( 3 minutes or so ? ). It has a heater inside so will always come on whether the engine is hot or cold and gradually close over the 3 minutes or so. Looks like a small cone with a disc stuck on the end with a pipe on each side.
5 : Worn throttle butterflies / throttle housing. Air leaking past butterflies or leaking in through the spindles.
6 : Throttle balance screws. One screw on each intake, used to balance the four butterlies at idle, can cause high idle if all are adjusted too far out. Can be found on top of the throttle body next to the injectors.
7 : Vacuum ports. One port on each intake that is used with a vacuum guage for balancing the throttle bodies ( see #6. ) Should have rubber boots blanking them off but have been known to disappear... Found next to the throttle balance screws on top of the throttle housing.
8: Igniton too far advanced at idle. Should be 20' +/- 2' for a standard car.
9 : Throttle butterfly stops incorrectly adjusted. Stops the butterflies from closing properly. One screw for each pair of butterflies, usually sealed in place and a right beach to adjust
10 : Accelerator pedal / cable not adjusted properly. Butterflies not closing fully, similar to #9.
11 : TPS Throttle Position Sensor fault or maladjusted. Gives the ECU wrong indication of whether the engine should be idling or not, see also # 2.
12 : Blow off valve leaking. Allowing air to blow past diaphram under vacuum.
13 : Air leak from any of the 3 billion pipes that connect everything above. The pipes are all rubber and do perish over time....
14 : Inlet manifold gasket or Plenum gasket leak.
15 : Faulty Lambda sensor. Used to set the mixture to approx 14.7:1 at low engine speeds / loads. Can cause mixture problems and uneven idle. Can be found on turbo exhaust ( dump ) pipe, bottom left hand side of the engine.
16 : Aftermarket fuel controller set incorrectly. Can be a problem on Apexi PowerFC ECU's where the 'electronic' base idle is set too low for the actual 'mechanical' setting. Causes the idle to hunt and jump around as it tries to achieve an impossible target.
the stock idle is 900-950 and its beautiflul. my power fc hasn't worked on my car so i asked my buddie to come over and i put it in his car and it idle's nice at 900-950
