First problem...'miss' at higher throttle (updated)

[pontiac nino]

yep you should see a spark running from the terminal, if you got water on the coil pack I don't really if it would affect it or not but come on it's electricity that runs all throught the coils, you know it also might be a bad/faulty sensor when your ride warms up maybe your computer is prolly picking up that it's faulty I don't really know just a few other suggestions.

[Ian]

well guys, thanks for the help again.

im headin back to school tommorrow and im gonna get my codes scanned from the Autozone up there. once i find out which cyl. it is, im checkin the wire, than switchin the coil pack to see if the miss moves with it.

thanks again.

[jbfirebird]

i had just gotten my misfire issue fixed, the mech went through all wires plugs coils and came up to be the problem of a fouled injector causing misfire on number 3

[mrbako]

def a coil pack.

[Ian]

Ok, just got back from autozone, got the codes scanned, and guess what........not one single code found. Car is running perfect according to the computer.

So......im guessin its not a miss anymore, although thats sure as hell what it feels like.

1) Would a clogged cat cause a code to be thrown? It is a possibility that it could be the cat, although i dont hear any of the ceramic in the exhaust clunkin around.

2) Would the clutch be slipping perhaps? This is my first stick car, and dont know what a periodic cluth slipping would feel like.

[John D.]

Originally posted by Ian:
Ok, just got back from autozone, got the codes scanned, and guess what........not one single code found. Car is running perfect according to the computer.

So......im guessin its not a miss anymore, although thats sure as hell what it feels like.

1) Would a clogged cat cause a code to be thrown? It is a possibility that it could be the cat, although i dont hear any of the ceramic in the exhaust clunkin around.

2) Would the clutch be slipping perhaps? This is my first stick car, and dont know what a periodic cluth slipping would feel like.

Did the car ever throw an SES light? If not, then no, a code won't show.

To answer your questions:
1) Yes a clogged can can cause the car to run bad but it usually doesn't feel like a misfire, just loss of power. It will throw a code, usually, as well.

2)If the clutch was slipping the engine RPM would rise but you wouldn't accelerate. It simply feels like you slipped it into neutral and hit the gas.

My advice - Change your plug wires first, since they are the cheapest and your originals are high mileage. If that doesn't resolve the issue start in on the coils. I would buy just one coil pack and just start swapping it from one spot to the other until the misfires stop.

[Ian]

Originally posted by John D.:
Did the car ever throw an SES light? If not, then no, a code won't show.

To answer your questions:
1) Yes a clogged can can cause the car to run bad but it usually doesn't feel like a misfire, just loss of power. It will throw a code, usually, as well.

2)If the clutch was slipping the engine RPM would rise but you wouldn't accelerate. It simply feels like you slipped it into neutral and hit the gas.

My advice - Change your plug wires first, since they are the cheapest and your originals are high mileage. If that doesn't resolve the issue start in on the coils. I would buy just one coil pack and just start swapping it from one spot to the other until the misfires stop.

Ok, i was just doin some searching on the boards here, and saw that when a clutch begins to slip, it will feel like its jolting you at first, under heavier throttle application. This is what is feels like sort of.

I guess it wouldnt be a clogged cat if i havent gotten an SES light (oh yea, no SES light).

I want to look into this clutch thing more, than ill check out the wires and stuff.

Thanks for the responses guys, keep em coming!

[pontiac nino]

If it was the clutch slipping you would feel a nasty *** jolt horrible, I still think you have a plug/wire/coil issue, they won't necessarily throw a code especially a coil....BTW did you personally check the coils to see if they have decent current? Just a question. ;)

[Ian]

nah, i havent checked the coils to see if they have good current. i currently dont have access to a multimeter any more because im back at school, but i will again in a week and a half when i am home again.


If it necessarily wont throw a code, i will check them for sure.

[HotWheelz]

Sounds ver similar to what was happening to mine a while back. It would start to stutter under a load, and then on occasion, a backfire would be heard. It would seem to work itself out at times as well, only to come back.

My problem ended up being a combination of a badly clogged EGR Valve, and bad plugs/wires. But if your SES light never came on, I don't think the EGR valve would be your problem. Best bet would be to check your plugs and wires.

[Ian]

im gonna do the wires for sure. they need it anyway. if thats not it, coil testing comes next

[jbfirebird]

if wires/plugs/coils dont fix it, look to see if the injectors are gunked up. the issue that i was having was misfire on number three. after replacing all three things there, the prob still existed, turns out it was an injector

[John_D.]

I have some coils and injectors cheap, if it comes to that.

[jbfirebird]

you prolly wont need to replace the injectors...just clean them

[Golbez]

I bet its going to be your wires, see if you can look at it on a lift and see how bad they are up under your exhuast manifold.

man I just did my plugs and wires and when I went to pull off the cap from a spark plug, it ****ing severed from the wire soon as I yanked it off the spark plug