LAST EDITED ON 03-Oct-01 AT 07:06 PM (PST)

okay, after new bored TB from Howell, my car now does some weird idle shit-it aint really that big of a deal, but im anal so it bugs the shit out of me, heres whats going on: while the car is moving, with it out of gear (the speed doesn't seem to matter) the idle will fall to about 1500-2000rpm and stay there untill the cars comes to a stop. occasionaly it will suge a tiny bit within those ranges but, once stopped it will fall to the normal rpm range. Now, i dont remember the stock TB doing before the bore, so i dont know if its a side effect of the bored out TB, or if my shit was broke before and somehow wound up being "fixed" with the boreing. Anyone else have this problem? i dont have any air leaks, and the gasket is brand new, i un-hooked the negative battery cable for over 30 seconds, but no luck! please help if you got some friggin ideas!!!!!thanks
could it be the IAS motor?

http://my97rs.homestead.com/mywebpage.html

I refuse to tip-toe through life gently, only to arrive at death safely!

$14,000.00 97 RS
$100.00 Custom CAI
$150.00 AF/X UDP
$100.00 Bored TB-55mm
$80.00 GS-T exhaust
$38.00 "Super Good" plug wires
$90.00 Front & Rear upper strut bars
$42.00 Rear lower Stablizer bar
$50.00 Front RRE lower Tie bar
???? Eibach Sportline Springs
$245.00 Tokico shocks
$120.00 Powerslot Rotors
$85.00 S/S braided brake lines
$50.00 Axxis Metal master pads
???? 17" Focal Type 161's w/ Z-rated rubber
$0.00 Stock shifter shortened 1.25in
$11.00 Energy Suspension Shifter bushings
$22.00 Custom shift plate(no more shift boot)
$60.00 Indiglos
$65.00 Grillcraft 3-pc. grill
$50.00 V-Tech Taillight covers
Coming soon: AFC($250.00), EGT($110.00), A/F meter($65.00)install, Pacesetter ceramic coated headers($240.00), 2.5" full exhaust pipng(?)

sounds like a sensor dood, hows your throttle postion sensor doin?

"Canada - The Maple Leaf State"
-Me

BKR5E-11's
cone filter
brospeed muffler from mx-3
exhaust leak (mad power gain)

I had that problem after I ported my TB, you're probably getting error code for high idle too.

what fixed mine, was grinding down the idle adjuster screw(I think it can be just screwed out too) till the throttle plate would close far enough for the idle to kick down.

sorry If I'm being vague, but I don't know if theres an exact name for the thingamagigger that I'm talkin about, but if you look where the throttle cable comes into the throttle body, you'll see it right above it.

it's a rather simple fix. it'll save you some swearing....


__________________________
...just my $.02
95 GS

it could be a sensor....but 99.99999999999999% of the time, it's what I just said there^^^^^^^^^^^^
__________________________
...just my $.02
95 GS

maybe now because your tb is bored bigger, extra air is going into the motor so that raises the idle rpm. just a thought...

the idle airflow goes though that little passage on the side, what is happening, is the throttle plate isn't seating enough and air is sneaking by it, causeing a high idle. if you can back it down more, you'll close it more and thus, eliminate the problem.

__________________________
...just my $.02
95 GS

Hey, first off it "might" just be a side effect of the bored throttle body. But what koolade is talking about is the idle screw that is a T20 bit. It's the thing that the throttle plate thing hits when you let off the throttle (you can see it from the outside, and its connected to the throttle cable. I guess it's called a throttle stop or something. I turn that thing out cus my idle is too low, so I think koolade is right in saying to sand it down (but really you should turn it in with a T20). Turn it so its farther in, so the throttle plate will be more closed...

eclipse804@hotmail.com
http://www.importvenom.com
Import Venom - Parts and Performance

http://members.home.net/xtatdsm



Tim97RS, I know exactly what you are talking about. you would be driving like let's say 30mph, then you are about to come to a stop sign or somthing, so you step on the clutch, you RPMs drope down, but not down enough to reach your idle (like what you said, they will stay up close to 1500 RPM) till you come to a full stop, and that's when the RPM will drop down to normal (less than 1k rpm)

does that ring a bell? if it does, then add me to the same list. the thing is, I have been having this problem for at least 3 years if not more (3 years ago I had my TB, Intake manifold, and head bored, ported, and milled all at once) it did bother me for a little bit, but then, I got used to it.

I am not sure what the hell caused it, but now that you have talked about it, I think it might be the Bored TB.

oh I tried messing with the butterfly stopper and that did not help at all.

Adel



Ported TB and Intake manifold ** ported and milled head ** PT rockers and lifters ** Crane Drag cams #16 ** Crane valve springs and retainers ** AEM cam gears ** Hotshots headers ** Greddy Cat back ** Iceman CAI ** S-AFC ** and the usual handling mods

You know, Adel just described what happens to my car when I slow down to a stop. Now I have a ported throttle body, but the butterfly is the stock one. I didn't have it doen by howell, I did it myself do remove the hump in the middle of it.

I learned to live with the problem too. Sometimes I thought that my foot was pushing the gas pedal. My idle is pretty normal and no other problems, just when coming to a stop.

I had the jumpy idle once though, my throttle position sensor had come unpluged.




http://hometown.aol.com/ohshootuhh/

Perf:
KYB AGX Struts
Neuspeed Sport Springs
5 Strut Bars (2 F/U, F/L, R/U, R/L)
Sprint Front Camber Kit
$15 Rear Camber Kit
Some Regrind Cams that need High Compression (which I don't have)
Ported Intake Manifold
Ported Throttle Body
Nameless Cold Air Intake with a K&N Filter
Custom 2 1/2 inch exhaust with Dual DTM Muffler
Empty Catalytic Convertor
Energy Suspension Motor Mount inserts
Hurricane_GS Short Shifter
Symborsky Shift Kit
Clutchmasters Stage 3 Modular
225/50/16inch Wheels and Tires


Audio:
Alpine CD Head Unit
Alpine Flex4 25W X 4 for Fronts and Rears
Alpine V-12 450W X 1 for Subs
Infinity Reference Series 5 1/4 and 1 inch tweeter component systems for fronts and rears
Blaupunkt 3 way 6x9's in the rears
3 MTX 5000 10" 12 ohm subs running 4 ohms mono

all of you....try grinding it(or screwing it) down. at first, I kept turning it in, and it didn't make a difference, or it did, but then went back. just take that sucker all the way down....it doesn't hurt to have your plate closed all the way....

I have a rock-solid idle now, no fluctuation at all...

__________________________
...just my $.02
95 GS

Mine does that some times... (don't notice it all the time) but I don't have any engine mods appart from the air intake.


Whodatt1
97gs

I have the exact same thing...always have, and I have no intake work done. just an CAI...


www.vectorracing.com

that sh*t staarted to happen to me after i put my turbo on last week. i too dont have a btb.

Mine has done that ever since I've had my car (before and after turbo). I don't have a bored TB so I dont think it has anything to do with that. I really dont know what would cause it though...

Matt
HRC Stage 2

the only problem with the throttle plate is that when its fully closed, the accelerator peice that the cable hooks to, dosent hit that screw that some guys are talking about. and when i hold a stock one up to light, there the same amount of light leak around the edges of the plate as on the bored one. However i dont think i have looked to see if the plates set at the same angle in the TB itself, so even though its closed maybe it can be shaved down a bit and made so sit perfectly up and down..i will look and let you know what i find...


http://my97rs.homestead.com/mywebpage.html

I refuse to tip-toe through life gently, only to arrive at death safely!

97 RS
Custom CAI
AF/X UDP
Bored TB-55mm
GS-T exhaust
"Super Good" plug wires
Front & Rear upper strut bars
Rear lower Stablizer bar
Front RRE lower Tie bar
Eibach Sportline Springs
Tokico shocks
Powerslot Rotors
S/S braided brake lines
Axxis Metal master pads
17" Focal Type 161's w/ Z-rated rubber
Stock shifter shortened 1.25in
Energy Suspension Shifter bushings
Custom shift plate(no more shift boot)
Indiglos
Grillcraft 3-pc. grill
V-Tech Taillight covers
Coming soon: AFC, EGT, A/F meter install, Pacesetter ceramic coated headers, 2.5" full exhaust pipeing

Add me too. Ever since I have had the car it has done that. I do not know what it is. I do have a bored tb, but it was doing that before I bored it.

Brynden
AFX UDP
Greddy Headers
Greddy SP Cat back exhaust
AEM CAI
Ported TB
MSD Dis 2 Ignition

Full competition stereo:
3 Orion XTR Pro 10" Subs hitting 137.6 DB's in competiton
Pheonix Gold M100 Sub Amp
Pheonix Gold M44 Mids and Highs Amp
Pheonix Gold 150 Band EQ.
Pheonix Gold Bass Cube
2 Stinger 1 Farad Caps
Blaupunkt San Fransisco Deck
5 Disk In-dash Blaupunkt changer

Yeah Mine has done that since I got the car... no mods... it's an ECU thing that alows for you going back into gear while still moving so the engine and trans don't rev too fast to match the new rpm of the tires. I think it's something the ECU does/learns depending on drivign style...

I wouldn't worry about this until the idle doesn't drop to normal levels when you stop. Then start looking at sensors and checking for vacuum leaks. Which is a likely possibility if you think it's sitting too high and not wuite right... do a quick check of yrou vacuum hoses.

"Character is doing the right thing when no one is looking."
Michael J. Kulaga e-mail: Michael_97RS@2gntDSM.zzn.com
aol IM: MJKulga Website: http://highlander.dsmpower.com/

Injen CAI, 55mm TB, Hooker 4-1 Stepped Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730 215/45ZR-17. Front KVR Cross-Drilled Rotors and Carbon Fiber Pads

To Be Installed: Rear disc brake conversion kit, SS Brake Lines, Rear KVR Cross Drilled Rotors and KVR Carbon Fiber Kevlar Pads, EGT (partially installed)

O have the same shiat right after my cam gears and dyno test.

Daniel
'96 GS-T
A.K.A. "HONDA HUNTER"
"DON'T HATE....PARTICIPATE"

I need NOS...and Harry, I need it by tonight!!!

Tim, I get the same problem here! To fix it I can tune in the super afc quite a bit richer at lo throttle setting 1k, but then I don't get as quick throttle response. My TB is also bored out and polished.




1995 RS
16x8 Momo's
CAI
4-2-1 Headers
2.75 in Tenzo cat-back exhaust
carbon fiber s%^t
2nd gen altezza's
GTS carbon look headlight covers
Apex-I Super AFC
Eiboch lowered
Momo pedals
Indiglo gauges
Autometer gauges/pillar pod
Front, Rear, upper and lower strut braces(neuspeed)
Clarion auto pc with navigation sytem
Clear front corners
Ported throttle bodie(55mm)
Racing stripes (one 2" one 6" side by side down the passenger side)
Custom front grill
"mitsubishi inside" sticker (my favorite)
I got lots more mods but Im tired of typing :)