Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Hesitation after header installation

Thread Tools
 
Search this Thread
 
Old Apr 29, 2006 | 12:10 PM
  #1  
JoeZLS1's Avatar
Thread Starter
Teching In
iTrader: (1)
 
Joined: Nov 2005
Posts: 17
Likes: 0
From: Raleigh, NC
Default Hesitation after header installation

Just installed pacesetter LTs for 02LS1Z28 w ORY, untuned. Car hesitating on acceleration. O2 sensors i believe are fine, though the back sensors are no longer plugged in. Check engine light doesn't come on.

Could one of my spark plug wires be loose? The spark plug wires went back on a whole lot easier then they came out. Seems like they are loose? Is that normal or did I not get them back on right?
Reply
Old Apr 29, 2006 | 12:16 PM
  #2  
blazinws6kush's Avatar
Staging Lane
 
Joined: Aug 2005
Posts: 98
Likes: 0
From: Rancho Cucamonga, CA
Default

Just installed my QTPs w/ ory and my car is doing the same, may need tuning.
Reply
Old Apr 29, 2006 | 12:18 PM
  #3  
erikthegoalie's Avatar
TECH Addict
iTrader: (29)
 
Joined: Apr 2005
Posts: 2,269
Likes: 0
From: Margate, FL
Default

tuning guys....
Reply
Old Apr 29, 2006 | 01:59 PM
  #4  
Lithium's Avatar
SSU's Drunk Typing Whore
iTrader: (47)
 
Joined: Jan 2004
Posts: 4,608
Likes: 0
Default

Yeah check the plug wires, make sure they click twice.

Other than that make sure everything is plugged in like it should.

May need some bosch sensons as well. Its always a good idea atleast.
Reply
Old Apr 29, 2006 | 03:25 PM
  #5  
Zymosis's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Jan 2005
Posts: 1,309
Likes: 0
From: World
Default

As long as it its not a miss, are you sure you arent confusing this hesitation with just a shift in the power band because of the headers?

A tune will help with this.
Reply
Old Apr 29, 2006 | 04:42 PM
  #6  
Raise's Avatar
TECH Addict
20 Year Member
iTrader: (31)
 
Joined: Dec 2003
Posts: 2,152
Likes: 0
From: Virginia Beach, Va
Default

your a/f is probably out of whack, but if its a real hesitation, then i would check plug wires first.
Reply
Old May 2, 2006 | 03:28 PM
  #7  
JoeZLS1's Avatar
Thread Starter
Teching In
iTrader: (1)
 
Joined: Nov 2005
Posts: 17
Likes: 0
From: Raleigh, NC
Default

To conclude this board...my severe hesitation was in fact due to loose spark plug wires, at least one probably not attached. I got some MSD's and it fixed the problem.
Reply

Trending Topics

Old May 2, 2006 | 09:21 PM
  #8  
Full-Force's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (11)
 
Joined: Aug 2004
Posts: 3,070
Likes: 5
From: Upstate of SC
Default

hesitation and misses after headers is almost always one of 2 things

loose plug wire

or

o2 wires are touching headers and have burned them and shorted out and blowed the eng sensor fuse
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old May 2, 2006 | 09:35 PM
  #9  
JDP's Avatar
JDP
TECH Fanatic
iTrader: (21)
 
Joined: Feb 2006
Posts: 1,370
Likes: 1
From: Allen Park, MI
Default

ya, my car was fine, i used bosch 02s, and ngk plugs with some msd wires and she runs like a champ
Reply




All times are GMT -5. The time now is 11:55 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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