Rough idle problem! then dies after it warms up?
 

have no money to take to a shop anymore... here's a list of what i have in case it contributed...

port and polished
skunk2 valves
skunk2 titanium retainers
ACT stage one clutch
skunk2 stage 2 cams
koyo radiator
tanabe super medallion exhuast
arp head studs
hondata s200 (not installed)

as soon as it warms up it hesistates, bounces between 800-500 rpm then dies... always after it warms up. while the rpm bounces i can tell the lights dim. i can hear a rattle sound (sounds like exhaust) gonna check that soon. will not rev past 4500 rpm. don't think its in limp mode (3500 rpm)

Here's what i've DONE so far.
cleaned iacv
new thermostat

Re: Rough idle problem! then dies after it warms up?
 

air in coolant system causes erratic idle

you also didnt specify your year integra..FITV valve if you got older integra
http://www.team-integra.net/forum/19...your-fitv.html

Re: Rough idle problem! then dies after it warms up?
 

2001 integra gsr. i saw that thread and was on my too do list. i tried to bleed out the air but it wouldn't push any bubbles out after awhile so i assumed it bled. i just let it sit there with the radiator cap off for awhile?

Re: Rough idle problem! then dies after it warms up?
 

Prob a clogged iacv...try cleaning it out

Re: Rough idle problem! then dies after it warms up?
 

that was my first thought after thread searching. but as stated in the first post i cleaned it and it only idled a little better =/

Re: Rough idle problem! then dies after it warms up?
 

Oops didn't see that...clogged cat...could b your prob too

Re: Rough idle problem! then dies after it warms up?
 

have you gotten it tune after the cams and stuff?

Re: Rough idle problem! then dies after it warms up?
 

no haven't had a chance to install the hondata s200 (shop "can't" find it) but i can't tune it till i fix the problem and at least get past 4500 rpm

Re: Rough idle problem! then dies after it warms up?
 

Guessing its a b series, may want to check if you have vacuum leaks or it might just need a tune.

Re: Rough idle problem! then dies after it warms up?
 

gonna check for vacuum leaks asap. trying to get it tuned but got let go at my job and don't have the money for it at the moment...now has 7 codes.

p0172-running rich
p0402-below cat threshold
p0301-cylinder 1 misfire
p0302-cylinder 2 misfire
p0303-cylinder 3 misfire
p0304-cylinder 4 misfire
p01399 - random/mulitple misfires

still troubleshooting one by one when i can. Just did -
VALVE ADJUSTMENT

cleaned iacv
new thermostat

still smells of excess fuel, idles ok but tach bounces between 800-under 500, lights dim when in that range, then dies but starts right back up, won't rev past 4500 rpm.

Re: Rough idle problem! then dies after it warms up?
 

Check your fuel pressure regulator may be stuck closed or damaged. if running p0402 it mostlikely your downstream o2 sensor witch if it is bad or shorted to power then ir most likely ur sensor is bad. o2 reads off 0-1 volt if it reads 1(or more) it believes it is running lean then causing you to run rich and p01399 limits your rpm to avoid damage to catalyst

Re: Rough idle problem! then dies after it warms up?
 

make sur all ur plug wires are in the correct place. same with your engine grounds

Re: Rough idle problem! then dies after it warms up?
 

defs sounds like it could be it, gonna wait for my friend to get off work and see if he'll let me borrow his 02 sensor to check if thats the problem.

they are all in correct order, however grounds look bad but not sure how they perform, gonna replace all of them just cause

Re: Rough idle problem! then dies after it warms up?
 

Fix your error codes. What injectors are you running? What ecu are you running? You need a basemap to start the car.

Re: Rough idle problem! then dies after it warms up?
 

workingg on fixing the codes. noticed something today, only idles rough when at operating temp anytime before that and it doesn't fluctuate

Stock injectors
Stock oem untouched ecu.

Re: Rough idle problem! then dies after it warms up?
 

When you borrow your friend's O2 sensor, see if you can borrow his IACV too and see if your problem persists.

The fluctuating idle with no FITV leads me to believe that you have a vacuum leak. Check vacuum level at idle. Should be about 19 in/Hg STEADY. If it's not that, see if you can chase down the vacuum leak. Though that shouldn't cause your car to stall at op temp, just idle rough.

Otherwise, I'd check the fuel pressure.

Should be:
39-46 psi as is.
40-47 psi with vacuum hose removed from regulator and pinched off to prevent vacuum leak.

If all that checks then check each injector's resistance: should be 10-13 ohms.

That's all I got. GL.

Edit: Are you still running the stock GSR intake manifold? Might be that the IAB is stuck open... Not likely but might be worth checking.

Re: Rough idle problem! then dies after it warms up?
 

But are these the FACTORY ORIGINAL injectors? In other words, did the car leave Suzuka with those particular injectors plugged into its intake manifold?

I ask for a very good reason!

Re: Rough idle problem! then dies after it warms up?
 

'm am certainey are! what if they werent?

Re: Rough idle problem! then dies after it warms up?
 

gonna check everything asap, i don't have it, shop said it "cracked" and gave me a blox intake manifold

Re: Rough idle problem! then dies after it warms up?
 

Then they may have been replaced with the wrong ones. And that leads to a P0172. The Honda dealer parts catalog listed the wrong injectors for the '98-'01 GS-R until about Feb/02. Correct part number is 06164-PJ2-000.

Re: Rough idle problem! then dies after it warms up?
 

If you have a blox manifold then you have no IAB. I've never seen a cracked manifold outside of a severe accident. I would be somewhat suspecting of your shop. Tell them that you want your manifold back. If they resist then start talking tough and mention the B.A.R. You are entitled to receive any replaced parts.

Re: Rough idle problem! then dies after it warms up?
 

If I'm not mistaken, all B series injectors are 240cc. Yes even ITR. The difference for the 98-01 (possibly 96-01) injectors is that the connector is different, I believe, for OBDII.

There aren't a whole lot of other injectors that will plug straight into your connectors. I'd argue that the P0172 is due to the unburned fuel that is going into the exhaust stream due to all your misfires.

Re: Rough idle problem! then dies after it warms up?
 

i'll look into it.

already went to the bar, filed a complaint, the owner went into a coma after food lodged into his throat. (comfirmed) i told em i wanted ALL my parts but the younger brother doesn't know where they are at so i'm stuck. i mentioned i wanted any parts that were good before he went into his "coma"

this makes sense...still waiting to have time to check it out as i work every single day this week due to thanksgiving.

Re: Rough idle problem! then dies after it warms up?
 

Wow! Good luck man... And Happy Thanksgiving.

BTW, where in CA are you?

Re: Rough idle problem! then dies after it warms up?
 

Correct all B series OEM injectors are 240 cc. The only differences between obd1 and obd2 are the injector clips.

Since you don't have a wideband I would check for fuel pressure as stated above when the problem usually occurs.