occassional missfire on #3

[drumking1721]

i know its not the crank or any of that. The car runs great when its not misfiring.I took out the plugs today and they had a wee bit on fuel on them from the gas not being burned off....so yea....

[Sprucegagt]

WOW! I'm surprised that NO ONE here knows why his car is missing when the tires are slipping. Instead all of you are just tossing up anything because you really don't know. Come on. Some of you are not newbs anymore. I'll give you a hint. It's a standard feature on all 99 - 05 GAGTs.
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ETS

As for the miss when its wet outside. Well that sounds like a moisture problem. Either replace the plug wire boot or change the whole wire.

[drakesrevenge]

i had a misfire before, it turns out that i didn't seat the spark plug all the way in, it got cross-threaded. got it chased and then the spark plug went in fine. never had a misfire since.

[gectek]

well that was just like the other question el nino posted as to why his car would take a crap when he was trying to do burnouts, but everyone just automatically thinks that they would take the ets off if they were going to spin the tires. or at least have it disabled.....so that begs the ?

do u disable the ETS when u spin the tires

[Sprucegagt]

The ETS system works by disabling injectors in progressive fashion until traction is restored. So if your trying to do burnouts while ETS is on, then yeah, your car will take a dump when doing this.

As for disabling it. Please tell me your asking this after trying to push the button first.

[gectek]

yah, i forgot to turn mine off once and went to spin the tires in the hole to take the trash off, well the crowd thought it was funny when my car up and took a dump

NEVER AGAIN

[drumking1721]

Originally Posted by Sprucegagt

WOW! I'm surprised that NO ONE here knows why his car is missing when the tires are slipping. Instead all of you are just tossing up anything because you really don't know. Come on. Some of you are not newbs anymore. I'll give you a hint. It's a standard feature on all 99 - 05 GAGTs.
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ETS

As for the miss when its wet outside. Well that sounds like a moisture problem. Either replace the plug wire boot or change the whole wire.

THANK YOU,i wasnt listenin to them really....i had a feeling it was the ets,i just wasnt sure and was WAITING for someone to say it...i love you much

[drumking1721]

i thought all were off the wall,i knew it was something simple,but im the type of guy who needs to be reassured about everything and doesnt say it

[gectek]

ok, well left field here i come...why didnt you try the spinning tires without the ets on and see if it happened then?

i guess you cant assume anything around here...

[drumking1721]

Im slightly retarded

[drumking1721]

I think of stuff and never follow through with it.Like oh yea maybe i should try this then forget it 10 seconds later

[gectek]

thats about the only thing my cell phone is good for, voice recorder and memo

[drumking1721]

i SHOULD use that,but i forget i have a voice recorder on there.....

Well, it threw the randon missfire on cyl #3 again. No Change.

To recap, new injector, swapped 2/5 and 3/6 oil packs, #3 and #2 plugs, finally swapped #3 and #5 wires. The codes have been cleared during each swap.
The engine runs fine, with no visiable miss or loss of power.

Nothing out of the ordinary. Kind of leads me to lean towards a computer issue instead internal engine hardware.

Need some further ideas. HELP!

[Sprucegagt]

Have you switched out the ICM or run a compression test on cyl #3?

Will give the compression test a shot sometime over the next 2 weekends. The next 5 days are going to be rough as I am on call 24/7 and it's the wife's bday today. So have to do the special something for her.
Will let you know what the compression check shows when I finally get to it. THANKS.

[RODAN]

You must had one hell of a good time on your wife's B'Day.

i have had the cylinder #3 random missfire for about 4 months and have checked everything from injectors to plugs, wires and coils and found nothing wrong and even connected the tech 2 scanner and found nothing except random #3 missfire. today my car wouldn't start and i used some water and baking soda on the battery cable and found that my positive battery cable was corroded all the way through, i tried getting one from the dealership for a '97 3100 and it had been discontinued so i went to advanced auto and got a positive and auxiliary for like 8 bucks and i haven't had a problem since.

[RAZE]

Originally Posted by RODAN

You must had one hell of a good time on your wife's B'Day.

Any update on this? I'm having a similar problem on my GP.

[whoisryan]

just want to say i had the exact same problem... go to a GM dealer and pick somthing up called Top engine cleaner... they will tell you not to put it in your gass tank... do it anyway ( the entire bottle ) and it got rid of the missfire. havent seen that code since