NAIOA.comNAIOA.comNAIOA.com
 Create an Account
 

  
NAIOA Impala Forums :: View topic - Missfires
GarageGarage    1/4 Mile Table1/4 Mile Table    Forum FAQForum FAQ    SearchSearch    UsergroupsUsergroups   MedalsMedals
MemberlistMemberlist   ProfileProfile    Watched TopicsWatched Topics    Log in to check your private messagesLog in to check your private messages    Log inLog in 

Missfires

 
Post new topic   Reply to topic    NAIOA Impala Forums Forum Index -> 2000-2005 General Impala Discussion
View previous topic :: View next topic  
Author Message
Kissmyss
Uber
Uber
Elite Contributor (Amount: 1) Elite Contributor


Joined: Jan 27, 2008
Posts: 844
Posts per day: 0.23
Location: Brooklyn, NY

2005 Chevrolet Impala
1998 Dodge Durango


PostPosted: Fri May 22, 2009 6:09 pm    Post subject:  Missfires Reply with quote

Todd wrote:
keviiinn wrote:
2007 Chevrolet Impala SS.

one of the parameters I have my gauge set to in cyclic scan is misfires. I've noticed recently that I will get 1 or 2 misfires during normal light acceleration, or up to 8 when I'm backing up into a parking spot.

I then left the gauge on the misfires menu, where it shows which cylinders are misfiring. each of the cylinders will misfire at any given time.

however, I don't get any DTCs, CELs, or trouble codes or error messages of any kind. and also, the misfires will disappear from the misfire list, or go back down to zero in scan mode, in just a matter of 10 seconds or so after it says that there was a misfire. what could be going on?


Misfires are normal, especially when the engine is cold. It's only an issue when the number for a given cylinder gets above a factory determined limit indicating that something abormal is happening. This could be 50 per 200 engine revolutions for example.

The misfire counter resets after a predetermined period of time. I don't recall off of the top of me head what GM has set this value for your car, but it will will count misfires for a certain length of time then reset back to zero and start again.

Todd

I found this in the aeroforce forum, anyone care to comment on this?

_________________
05 SS Mods = CAI intake, Power wire upgrade, ZZP alternator Booster, Front & rear STB's, ZZP SS DP wcat, ZZP 180 t-stat, ZZP 3.5 tensioner pulley (both), ZZP S/S ceramic plog with ceramic crossover, Royal Purple 5/30, Goodyear Gatorbacks, 6000k hid head & fog lights, Overkill Pcm, Aeroforce triple gauge w/pillar pod, 35% window tint, Thrasher 3.4 s/c pulley, Autolite 104's, MCR 200 amp alternator, PRJ wires, Intense Shift kit, ZZP 1.9 modded rockers, ZZP stage 2 Tb, Extreme Dimensions rear bumper lip
Back to top
View user's profile Send private message
whitelightnin04MC
Uberd0rk!
Uberd0rk!
Bronze Contributor (Amount: 1) Bronze Contributor


Joined: Nov 05, 2006
Posts: 6364
Posts per day: 1.57
Location: I got big balls and dey jangle like a lotta keys.

2004 Chevrolet Monte Carlo
2001 Chevrolet Monte Carlo
2009 Subaru Impreza


PostPosted: Fri May 22, 2009 6:25 pm    Post subject:   Reply with quote

Sounds legit.

_________________
Proud Helldorado Nut Hugger

Resident Prick, at your service.
SS - Corsa Catback, RT 3" DP, CC T304 PLOG, Wizaired, ZZP Offset Polys, GMPP Koni Kit, Hella Projectrofits, PT, ZZP HVTB, 10.4's
Back to top
View user's profile Send private message
Sabrewings
Uberd0rk!
Uberd0rk!


Joined: Feb 15, 2006
Posts: 16858
Posts per day: 3.9
Location: Bossier City, LA

2004 Chevrolet Impala
2009 Subaru Impreza


PostPosted: Sat May 23, 2009 12:15 am    Post subject:   Reply with quote

I've only seen my car misfire once. I'm not always monitoring but cold or warm it practically never does it that I've been able to notice.

_________________

Still Imp'n, just with a different Imp.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
whitelightnin04MC
Uberd0rk!
Uberd0rk!
Bronze Contributor (Amount: 1) Bronze Contributor


Joined: Nov 05, 2006
Posts: 6364
Posts per day: 1.57
Location: I got big balls and dey jangle like a lotta keys.

2004 Chevrolet Monte Carlo
2001 Chevrolet Monte Carlo
2009 Subaru Impreza


PostPosted: Sat May 23, 2009 9:54 am    Post subject:   Reply with quote

I've seen the aeroforce count misfires on my 3400. Mostly when it's not warmed up yet and I rev the engine a little. The misfires usually happen when I let off the gas. There may be like 2 or three or something, nothing that you would actually notice without the aeroforce telling you that you had misfires.

_________________
Proud Helldorado Nut Hugger

Resident Prick, at your service.
SS - Corsa Catback, RT 3" DP, CC T304 PLOG, Wizaired, ZZP Offset Polys, GMPP Koni Kit, Hella Projectrofits, PT, ZZP HVTB, 10.4's
Back to top
View user's profile Send private message
keviiinn
Resident
Resident


Joined: Aug 05, 2008
Posts: 572
Posts per day: 0.17
Location: Brooklyn, NY

2007 Chevrolet Impala
2006 Dodge Charger


PostPosted: Sat May 23, 2009 10:42 am    Post subject:   Reply with quote

that was actually me asking that question. I tried doing some research regarding if a misfire here and there is normal, I couldn't really find any conclusive answer.
Back to top
View user's profile Send private message
IffyG
NAIOA Moderator
NAIOA Moderator
Silver Contributor (Amount: 1) Silver Contributor


Joined: May 19, 2007
Posts: 13731
Posts per day: 3.56
Location: Nashville, TN

2002 Chevrolet Monte Carlo
1998 Oldsmobile Intrigue
2009 Chevrolet Malibu


PostPosted: Sun Oct 11, 2009 11:04 pm    Post subject:   Reply with quote

keviiinn wrote:
that was actually me asking that question. I tried doing some research regarding if a misfire here and there is normal, I couldn't really find any conclusive answer.


After I installed my new plugs and wires I decided to check the misfires on my Interceptor (I had never done it before, so I don't have a baseline to compare to). As the statement in the OP said, it will occasionally read 2 to 4 misfires on random cylinders, but never when under heavy acceleration. Is this anything to be concerned about or am I being paranoid?

_________________
helldorado wrote:
GLWTGFY. Big Thumbs Up

Dan wrote:
Protip: If you don't know what you're doing, don't do it.


d
Back to top
View user's profile Send private message
GOTIT4CHEAP16
Senior Level
Senior Level


Joined: Sep 12, 2008
Posts: 2681
Posts per day: 0.79
Location: Bowie, MD

2000 Chevrolet Impala


PostPosted: Tue Aug 17, 2010 3:12 am    Post subject:   Reply with quote

I wanna know this too because one of the perimeters I'm watching on my aeroforce is misfires and when I'm in wot, I get up to 80 misfires.

_________________
L67 Engine Swapped w/ 2005 Impala SS
Mods: 3.0 MPS | Gen V | N* TB | LQ4 MAF | 130# Springs | XP Cam | |Stage 3 Ported Heads| Roller Master Double Timing Set | CAI | PRJ Wires | AL104 | Speed Daddy Headers | EGR Delete | ZZP Stage 2 Intercooler | 42lb Injectors |
13.4 @ 106


http://www.cardomain.com/ride/3183434
Back to top
View user's profile Send private message
nightryder
Master Level
Master Level
Silver Contributor (Amount: 1) Silver Contributor


Joined: Oct 18, 2006
Posts: 3256
Posts per day: 0.8
Location: Lockport NY

2001 Chevrolet Impala
2005 Subaru Impreza


PostPosted: Tue Aug 17, 2010 5:33 am    Post subject:   Reply with quote

GOTIT4CHEAP16 wrote:
I wanna know this too because one of the perimeters I'm watching on my aeroforce is misfires and when I'm in wot, I get up to 80 misfires.


That's not normal.

_________________
Back to top
View user's profile Send private message AIM Address
Display posts from previous:   
Post new topic   Reply to topic    NAIOA Impala Forums Forum Index -> 2000-2005 General Impala Discussion All times are GMT - 4 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB © 2001, 2005 phpBB Group
Forums ©
All logos and trademarks in this site are property of their respective owner. Comments and posts are property of the poster. All other content is © 2008 by the NAIOA.


Use of this site constitutes agreement with the NAIOA Terms of Service (TOS)


PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.
Server Local Time: December 13, 2017, 10:30:21 am
Page Generation: 0.10 Seconds ( SQL 31:126 in 0.01 Seconds )