PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Mis firing and bogging down

Thread Tools
 
Search this Thread
 
Old Oct 8, 2008 | 12:05 PM
  #1  
ws6fitz's Avatar
Thread Starter
TECH Apprentice
 
Joined: Oct 2008
Posts: 330
Likes: 0
From: Wheaton, Illinois
Default Mis firing and bogging down

Car is a 01 Ws6 with cam only, has 51k on it. Has had cam in it for about 8 months and was Tuned by Simpson Performance. Car has been mis-firing for a couple days now and SES light is flashing. Codes are for o2 sensors not working. I then tested both of my o2 sensors and they are fine, and all of the wires form the computer to them are fine. Then checked all plugs and they are fine as well. Used NGK tr55 gap is about .30

_ So.... Every once and a while the car just will just bog down and not want to move. U can floor it and still nothing it just bogs and goes like 5 mph. I then thought it could be the alternator not working. So I unplugged that and took it for a spin. It worked good for a minute and then all the symtoms came right back.

I am really lost to what else I can do to try and fix this problem. HELP!
Reply
Old Oct 8, 2008 | 01:37 PM
  #2  
SSAUTOCHROME's Avatar
Banned
iTrader: (2)
 
Joined: Jun 2007
Posts: 108
Likes: 0
From: San Antonio,TX
Default

No assumptions here so: Do you have headers? Did you purchase extensions for the factory O2's to work with your headers? OR Did you use the kit supplied with your headers to lengthen the stock wires? OR (RECOMMENDED) Did you replace your stock front o2's with Vette Bosch 13111's upon install?

Reason I ask is we did the original o2's wire lengthen/splice option for a few (frugal) customers and every once in a while we will get a call concerning a wire coming loose which will cause one hell of a pissed off ride. At that point we either reconnect (frugal) customers stock wires with new connectors OR ask them to please allow us to install for small fee the Bosch 13111's.
Reply
Old Oct 8, 2008 | 04:21 PM
  #3  
ws6fitz's Avatar
Thread Starter
TECH Apprentice
 
Joined: Oct 2008
Posts: 330
Likes: 0
From: Wheaton, Illinois
Default

Yes I do have LT pacesetters on the car. As for the o2's I picked up 2 of the Bosch o2's and bought 2 of the Caspers electronics extensions. The rear o2's I have had deleted and tuned out.
Reply




All times are GMT -5. The time now is 06:29 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE