LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Post header install probs.

Thread Tools
 
Search this Thread
 
Old Apr 7, 2006 | 12:32 PM
  #1  
9formula4's Avatar
Thread Starter
TECH Regular
iTrader: (5)
 
Joined: Jan 2006
Posts: 478
Likes: 0
From: Iowa
Default Post header install probs.

OK so I have posted on other baords with no solvation. Now I am asking you guys for help.

I installed a set of pacesetter mids on my 94 formula. I am having 2 problems one being more important to solve than the other.

When driving the car "bucks" like it is missing but at idle it idles FINE with the exception of a surge. Here is a vid of the surge to show what it is doing http://videos.streetfire.net/video/F...BE00C03F02.htm .

Now more about the "bucking" I have checked all the plugs and they are fine. The wires are also fine. So what could be causing this? We came to a conclusion that it may ba a vacuum leak but WHERE?? I have tightened up all hoses and the EGR is tight (not sure if it sealed COMPLETELY but yeah.

PLEASE HELP!!!!!!!!! I want my car back to normal.
Reply
Old Apr 7, 2006 | 12:43 PM
  #2  
Cchris1109's Avatar
TECH Fanatic
iTrader: (11)
 
Joined: Jan 2006
Posts: 1,497
Likes: 0
From: Phoenix
Default

the bucking is probably spark jump...when you install aftermarket headers its known for doing this because the header is straight rather than it dipping up, high temp wire fixes it, you need 600+ degree
Reply
Old Apr 7, 2006 | 02:48 PM
  #3  
crAzy95Z28's Avatar
12 Second Club
iTrader: (3)
 
Joined: Dec 2003
Posts: 822
Likes: 0
From: Houston/Missouri City
Default

LT4 knock module maybe?

bad o2 sensors?
Reply




All times are GMT -5. The time now is 11:27 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE