AnotherSi33

Hey Everyone,

I'm having trouble with my 2000 Si, I recently had the sparks and wires changed along with the clutch and flywheel. I can't seem to remember when my engine started to stutter, after the clutch and flywheel change or the sparks and wire change, I had both done a week apart. My car starts to stutter and its like its checking, its struggling to go and then it goes and then its struggling again to go, its like its stuck and then all of a sudden it goes. I can hear from my exhaust too. its like the exhaust coughing and choking.
My check engine light also came on, but that was after the Clutch and flywheel change. I'm guessing its the sparks that is causing the engine to stutter and choke and then go and stutter and choke again, it happens mostly when the engine is cold and then once in while when the engine is nice and warm.
Anybody has any ideas, do I have to regap my sparks or could it be something else? My friend is telling its the O2 sensor, when the clutch and flywheel was changed the check enigne light went on and the sensor is reading too rich of a air fuel mixture that it causes the engine to stutter. I believe it could be a misfire from the sparks.
Any help is appreciated.

Thanks,
Ken

chillly

What CEL code is blinking?

Under the pax. side floor board is a little plastic plug that's not plugged into anything. That's the Diagnostic plug. Take a little piece of wire or paperclip or something and run it between the two terminals of the plug, then turn your ignition key to "on" but don't start the car. Watch the CEL as it blinks, it'll blink a two digit code, long flash for the first digit, short flash for the second. Then look in the service manual (or hell, even just ask us ) and find out what code is flashing, and that'll give you a good idea of where to look for the problem.. Hope this helps

IWearMyKswiss

like said above,..throw the code to see whats going on,...but to me,..it sounds like your missfiring,...did you get real cheap wires? and did you gap the spark plugs yourself?

AnotherSi33

Well the guy that installed my clutch and flywheel had one of those little computers to pull up the code and all it said was the O2 sensor. As for the sparks and wires, I put in MSD wires and nology plugs but I my friend and I gapped them and installed them oursleves. we went with the Honda manual measurements.

Cheivic

Check your wires and sparkplugs again. That's most likely the problem.

civicmatt

look under the hood as a friend revs the motor. You may have an arc coming off a wire. does it happen under 3k rpm mostly? If it happens in the rain, give the motor a little shower while revving it. that's how I fixed mine.

h22civic95coupe

Heh, i had absolutely the same problem, it would mostly stutter when you give abit of throttle and if you pushed it to the floor, itll go like nothing was wrong with it, and it wasnt happening all the time, there were hours of normal driving and then this would happen for 5 mins and then go away for an hour. I never ever figured what was wrong with it, because that day we tried to check the spark ( wether the distributor was giving the right spark) and that day my car just died, and wouldnt start at all, and its still sitting at the garage, and so-called professionals are trying to find out whats wrong sad

AnotherSi33

Sorry to hear about your Civic H22civic, that just plain sucks, not even pros can figure it out and that makes it that much worse. The car just sttuters like there is a misfire then it goes then it stutters again. It has happened basically from 2k rpm all the way to 5500 and sometimes 6000 rpm, from 1st gear all the way to 5th gear, it happens mostly in the lower rpm range. It makes not fun fun to drive my Si.
I'm thinking of taking out the plugs and regaping them, if that doesn't work then I was thinking of going to Honda themselves. Anybody else have any ideas.

xhatchracerx

my b16 EK does the same ****, its always the O2 sensor, it is the only cel that i just cant seem to get rid of and 45, but who doesnt have that one....well from 1-5th gear it happens, whether im on the streets crusin or on the highway coasting at a steady speed, it just happens. it stutters am i right? i've had this problem for so long that i can feel it on my foot before it begins to really stutter. recently when im just coasting in neutral before a stop my RPM flucatues from like almost dead engine to 1100 RPM, i think its time for another O2 sensor, good luck man

saanemon

is ur rpm going slightly up and down while idling? if so, i'd recheck your spark plugs. take out the wire from atop each sparkplug out at one time, then put it back. if after taking out one of the wire and the car seems different than the other spark wires that u took out, then it's just a bad spark plug. if not, i have no damn clue. hehe. GL.

pornstarSR

come on, damnit

i have been having this problem on my new built Sohc for the past year....and yes i have had it at professionals trying to figure it out, but SINCE its RANDOM, its hard to figure it out....

i have checked almost everything, replaced almost everything...

Msd wires (2 sets)Msd distributor cap(2 of them) with external coil and MSD 6al
put back to stock(everything ignition wise) to see if that was it.....NOPE

changed map sensor.....NOPE

swapped the primary and secondary 02(since they are the same).......NOPE

recalibrated my TPS.....NOPE

changed out Ingnitor.....wait wait wait NOPE

Changed the fuel pressure back to stock.......Umm NOPE

checked cam timing and distributor timing....NOPE

checked all sensor grounds....NOPE

I hooked up the scantool to the ecu and drove around for a bit once and got it to do it.....i looked at the 02 sensor readings....it dropped voltage right when it started.....and stayed there...after it was over it moved back up to normal operation....jumping up and down....

im still thinkign its the 02 sensor....but its hard since i havent gotten a check engine light ssaying what it is...soo its been trial and error by both me and the professionals....

Frustrating......let me knwo if anyone fixes this...cause i want it fixed....and i will post if i get mine fixed

Zeus Zore

well that one step close 2 the prob.. with the reading og the O2 sensor..
sounds funny it "dies" then comes back when the car drives normal again..
im woundring what makes the O2 die !? og come 2 live again..

AllMotorHB

Sounds like the same problem i'm having with my honda. https://honda-tech.com/zerothread?id=509780

h22civic95coupe

When did you guys begin to have the problem ? it didnt appear out of nowhere did it?

AnotherSi33

My Check engine light went after the Cltuch and flywheel change. The guy at the shop said it was from the O2 sensor on the Header which he had to remove from what he told me to drop my tranny. I can't seem to remember when my Si started this B.S., after the sparks and wire change or the clutch and flywheel change, they were both done about 1-2 weeks apart. The sparks and wires were done first but I can't seem to recollect it happening then.

osirus

man, i almost did everything you did as well and I still have this problem. Its happening on my 99 Si. I can't remember when this started happening too! My ignition is all stock so.....if anyone finds out ANYTHING...please let me know...I HATE THIS!!!

pornstarSR

mine started right when i installed the new engine.....but i thnk it was semi doing it with the stock motor...but not as bad as it is in the new motor....

but all i know is that it was really there when the new motor went it....

i reused certain parts on the new motor, like throttle body(with all sensors, including idle air control), fuel rail(AEM) fuel pressure regulator(AEM) injectors

so im not sure if thats it cause, maybe something is old, a sensor is gone past its service life, cause all those sensor have about 100,000 miles on them..

another thing i changed that i didnt list above was the fuel pump, changed to a walbro 190gph fuel pump from the 90gph DX one.....still no change of course...


im not gona say its not the 02 sensor but like i said i swapped the secondary with the primary....which in my thinking is that the secondary didnt get as much beating because its after the cat.....but still no change...

another thing i noticed is when im driving and come to a stop the idle will be at about 750-800, then it will drop to about 500 rpm, and thats when i know its gona start hesitating. it doesnt always do it of course, but.....

and yes i have checked my idle air control, i have adjusted idle many time, reset the ecu many times

somtimes i just want to light the car on fire and call it a day!

osirus

damn man....same here......makes me hate driving the car. Its embarrassing because someone will be next to me and I'll start stuttering and it makes my car look like a POS!!

AllMotorHB

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pornstarSR &raquo;</TD></TR><TR><TD CLASS="quote">another thing i noticed is when im driving and come to a stop the idle will be at about 750-800, then it will drop to about 500 rpm, and thats when i know its gona start hesitating. it doesnt always do it of course</TD></TR></TABLE>

Samething with my car. When my cars idle is somewhere around 1000-1500 no lag. When the car idles below 1000 I know it's gonna start to lag. When I say below 1000 I really mean below. It goes right above the zero. It feels like it's gonna shut off.

pornstarSR

im trying to figure out a way to test it...

im thinking of just disconecting the primary 02 and drivng around for a bit, i know it will run hell of rich, but maybe it will show me that it wont do it....

but the only problem i see having with that is that on obd2 cars, is that if a vital sensor is not found or not working it send a check engine light(as most of you already know) so then the ecu goes to limp mode, not using all the sensor to run....so it may not show me if the 02 sensor is the problem, cause if it isnt using all the sensor how do i know its not one of the other sensors causeing the problem...

its hard to figure this out cause honda obd2 ecus are very complicated....i think im still gona try it but im not sure what the out come will be and weither or not it will be something that i can determine the problem from...

ill let everyone know

AllMotorHB

Yea I'm thinking its the 02 sensors as well. Are you using a stock or aftermarket cat? I'm using a Carosund cat and had to get the o2 sensor welded onto the pipe after the cat. maybe it's the location of the o2 sensor?

pornstarSR

Hahaha thats a no, i have no cat...so thats not the problem...first i thought that was it too so i removed it, and havent reinstalled it...

the primary o2 is in the header b pipe....it should be the right spot....i have looked at it numerous times....it looks fine...

but i dont know what else it could be....it sucks

osirus

do you think that you need to switch out your fuel filter?

pornstarSR

i have an aem high flow fuel filter...

not saying that should make me ok...

but hey its an option....

but when i had my fuel pressure gauge on the rail and the idle problem would start i didnt notice any drop in fuel pressure like it was getting blocked...

but hey ill try anything right now....

if someone told me getting a different muffler would fix it i would probably try it

(Dont tell me i need a new muffler)

GARBhatch.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AllMotorHB &raquo;</TD></TR><TR><TD CLASS="quote">

Samething with my car. When my cars idle is somewhere around 1000-1500 no lag. When the car idles below 1000 I know it's gonna start to lag. When I say below 1000 I really mean below. It goes right above the zero. It feels like it's gonna shut off.</TD></TR></TABLE>did same exact thing on my 1g dsm. Shook reallllly bad. I took it in and they said it was badly gapped spark plugs. It def fixed it. And at least its cheap and worth a try for you guys. good luck everyone. Mike D