Ilding pretty high with some other issues..... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

RuRoUnI_S14 · 11-08-2007, 12:42 PM

My car currently idles pretty high and I don't know why. Even after driving around for about 30 minutes to an hour, at a stop it idles from 1500 - 2000 rpms. I have a Sr20DET, FMIC, HKS BOV, Down pipe, test pipe, apexi exhaust, GReddy Spec II EBC set at 7.5 lbs. of boost, ACT lightened flywheel, Stage III Clutch, and I have not tuned the car yet. so I'm just wondering may that be it. Does it hurt the car at all? Or should I just be ok?

s13rookie · 11-08-2007, 05:59 PM

check your IACV or idle adjustment screw. an increase in air entering the motor is prolly causing the higher rev.

it wont hurt anything

240trooper · 11-08-2007, 06:23 PM

check ur belts ,and the maf, try reseting the ecu..

undesiredshoe · 11-08-2007, 06:25 PM

Where do you live?? Your thermo might be stuck open and making your engine run cold. Do you have a temp gauge and wideband?

RuRoUnI_S14 · 11-08-2007, 07:17 PM

I live in philadelphia, I don't think my thermostat is stuck open. I don't have a wideband yet and my temp guage is right at the middle. I will try The valve adjustment.

Quote:

Originally Posted by undesiredshoe

Where do you live?? Your thermo might be stuck open and making your engine run cold. Do you have a temp gauge and wideband?

bongnak · 11-08-2007, 08:44 PM

check your throttle cable and see if the throttle plate is fully closed when the pedal is released all the way... if thats not it clean your idle valve

slw240sx · 11-08-2007, 08:50 PM

all of the above from bongnak, and if i can remember, its been a few years since i have had a idle valve on my car, but when they go bad the car will idle right around that area. Take it of and clean it, then run the tests that they dictate in the FSM, i believe you might even be able to unplug it and plug it back in to here if its actually moving the valve open/shut. I went through allot of bad valves and eventually just made a block off plate and ran idle adjustment off my throttle stop, i know its a little ghetto, but its worked for 2+ years.

Jon

11-08-2007, 12:42 PM	#1
RuRoUnI_S14 Zilvia Addict Join Date: Apr 2006 Location: SoMeWhErE YoNdEr Posts: 604 Trader Rating: (1) Feedback Score: 1 reviews	Ilding pretty high with some other issues..... My car currently idles pretty high and I don't know why. Even after driving around for about 30 minutes to an hour, at a stop it idles from 1500 - 2000 rpms. I have a Sr20DET, FMIC, HKS BOV, Down pipe, test pipe, apexi exhaust, GReddy Spec II EBC set at 7.5 lbs. of boost, ACT lightened flywheel, Stage III Clutch, and I have not tuned the car yet. so I'm just wondering may that be it. Does it hurt the car at all? Or should I just be ok?

11-08-2007, 05:59 PM	#2
s13rookie Zilvia FREAK! Join Date: Mar 2002 Location: connecticut Age: 44 Posts: 1,129 Trader Rating: (0) Feedback Score: 0 reviews	check your IACV or idle adjustment screw. an increase in air entering the motor is prolly causing the higher rev. it wont hurt anything __________________ Ive spent most of my money on cars and women...the rest i wasted

11-08-2007, 06:23 PM	#3
240trooper Zilvia Addict Join Date: Sep 2003 Location: Torrance, California Posts: 791 Trader Rating: (10) Feedback Score: 10 reviews	check ur belts ,and the maf, try reseting the ecu.. __________________ 2.7L

11-08-2007, 08:44 PM	#6
bongnak Zilvia Junkie Join Date: Jan 2005 Location: So-Cal Age: 41 Posts: 337 Trader Rating: (3) Feedback Score: 3 reviews	check your throttle cable and see if the throttle plate is fully closed when the pedal is released all the way... if thats not it clean your idle valve __________________ Zzzz

11-08-2007, 08:50 PM	#7
slw240sx Zilvia.net Advertiser Join Date: Apr 2003 Location: Dayton Ohio Age: 43 Posts: 545 Trader Rating: (4) Feedback Score: 4 reviews	all of the above from bongnak, and if i can remember, its been a few years since i have had a idle valve on my car, but when they go bad the car will idle right around that area. Take it of and clean it, then run the tests that they dictate in the FSM, i believe you might even be able to unplug it and plug it back in to here if its actually moving the valve open/shut. I went through allot of bad valves and eventually just made a block off plate and ran idle adjustment off my throttle stop, i know its a little ghetto, but its worked for 2+ years. Jon __________________ http://www.forcedfabllc.com/

11-08-2007, 06:25 PM	#4
undesiredshoe Zilvia Addict Join Date: Sep 2005 Location: Wisco Age: 36 Posts: 787 Trader Rating: (2) Feedback Score: 2 reviews	Where do you live?? Your thermo might be stuck open and making your engine run cold. Do you have a temp gauge and wideband?