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

Wire unplugged what is it?

Thread Tools
 
Search this Thread
 
Old Mar 5, 2009 | 05:15 PM
  #1  
1996firebirdformula's Avatar
Thread Starter
TECH Resident
iTrader: (3)
 
Joined: Oct 2007
Posts: 883
Likes: 0
From: Seymour, Indiana
Default Wire unplugged what is it?

Its behind/on back of the Intake by the firewall there like 3 little plugins one of them was unplugged 2 of them face the firewall and other one points up i pluged that one back in. don't know how long that has been i plugged it back in. Anyone know what it is for?

Last edited by 1996firebirdformula; Mar 5, 2009 at 05:23 PM.
Reply
Old Mar 5, 2009 | 05:17 PM
  #2  
bigj2717's Avatar
TECH Addict
iTrader: (15)
 
Joined: Sep 2005
Posts: 2,062
Likes: 0
From: San Antonio, TX
Default

pics would probably help a lot
Reply
Old Mar 5, 2009 | 05:26 PM
  #3  
1996firebirdformula's Avatar
Thread Starter
TECH Resident
iTrader: (3)
 
Joined: Oct 2007
Posts: 883
Likes: 0
From: Seymour, Indiana
Default

Well i found a picture of it. Its number 4 on there.

Reply
Old Mar 5, 2009 | 05:28 PM
  #4  
ss.slp.ls1's Avatar
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default

Oh, when you said clips, I thought you meant electronics, not vacuum stuff. That's the vacuum line from the egr solenoid to the egr valve (as you probably got from the diagram). It just controls when the EGR valve opens. It's no biggie, just smog crap. I deleted my emissions equipment.
Reply
Old Mar 5, 2009 | 05:30 PM
  #5  
bigj2717's Avatar
TECH Addict
iTrader: (15)
 
Joined: Sep 2005
Posts: 2,062
Likes: 0
From: San Antonio, TX
Default

yeah like he said just emissions stuff. i tooke all that off just put caps on the ports on the intake and youre good
Reply
Old Mar 5, 2009 | 05:37 PM
  #6  
xx_ED_xx's Avatar
TECH Addict
15 Year Member
iTrader: (17)
 
Joined: Jun 2007
Posts: 2,175
Likes: 0
Default

You should of had a check engine light from it not working correctly
Reply
Old Mar 5, 2009 | 07:18 PM
  #7  
lifeisgood's Avatar
11 Second Club
iTrader: (4)
 
Joined: Oct 2006
Posts: 1,029
Likes: 0
From: ky
Default

it is a biggie if you have emissions testing, and yes you should get and ses light if its off. if not it will only hurt your gas mileage
Reply
Old Mar 5, 2009 | 07:23 PM
  #8  
1996firebirdformula's Avatar
Thread Starter
TECH Resident
iTrader: (3)
 
Joined: Oct 2007
Posts: 883
Likes: 0
From: Seymour, Indiana
Default

Originally Posted by lifeisgood
it is a biggie if you have emissions testing, and yes you should get and ses light if its off. if not it will only hurt your gas mileage
No emissions. No Ses light either I had it kick on once few years ago so i know it works.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Pouria Savadkouei
story-1

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

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Mar 5, 2009 | 07:34 PM
  #9  
Nova5's Avatar
TECH Enthusiast
 
Joined: Jun 2004
Posts: 597
Likes: 0
Default

Originally Posted by xx_ED_xx
You should of had a check engine light from it not working correctly
I haven't seen a light in a year. I think my cars cpu finally figured out i really don't care about an EGR or AIR malfunction.
Reply
Old Mar 5, 2009 | 07:35 PM
  #10  
lifeisgood's Avatar
11 Second Club
iTrader: (4)
 
Joined: Oct 2006
Posts: 1,029
Likes: 0
From: ky
Default

just bc it worked a few years ago doesnt mean it works no.lol
go to a auto zone or something and see if theres any codes. there should be if you dont have a vac line goin to it anymore.
Reply
Old Mar 5, 2009 | 07:46 PM
  #11  
1996firebirdformula's Avatar
Thread Starter
TECH Resident
iTrader: (3)
 
Joined: Oct 2007
Posts: 883
Likes: 0
From: Seymour, Indiana
Default

Originally Posted by lifeisgood
just bc it worked a few years ago doesnt mean it works no.lol
go to a auto zone or something and see if theres any codes. there should be if you dont have a vac line goin to it anymore.
I got a OBII scanner no codes.
Reply
Old Mar 5, 2009 | 07:49 PM
  #12  
lifeisgood's Avatar
11 Second Club
iTrader: (4)
 
Joined: Oct 2006
Posts: 1,029
Likes: 0
From: ky
Default

have you been on the expressway?
you have to make a certain amount of runs b4 the code comes on.
it will. i would assume you just did this, once you get on the express way it will maybe a day or so. but if theres no vac line attached to the egr it will through a code
Reply
Old Mar 7, 2009 | 03:11 AM
  #13  
1996firebirdformula's Avatar
Thread Starter
TECH Resident
iTrader: (3)
 
Joined: Oct 2007
Posts: 883
Likes: 0
From: Seymour, Indiana
Default

Well i drove car sense i plugged it back in and it ran like crap. Was pulsing at 55 mph at 10 mph press gas and there was little to nothing. Drove it for 20 miles and almost died once rpms came down like to 300 at idle. Unpluged it and it runs perfect again.

Here what i plugged back in and just unplugged earlier i circled it. Mabe thats why it was unplugged in 1st place had car little over 3 years.

Reply
Old Mar 7, 2009 | 06:34 AM
  #14  
Nova5's Avatar
TECH Enthusiast
 
Joined: Jun 2004
Posts: 597
Likes: 0
Default

just leave it alone. the previous owner must have just gotten around the EGR system giving him trouble by removing that. Although it should have been taped up or something to prevent contaminants entering the system.
Reply
Old Mar 7, 2009 | 07:42 AM
  #15  
multmigs's Avatar
TECH Regular
iTrader: (2)
 
Joined: Oct 2003
Posts: 412
Likes: 0
From: valley forge PA
Default

Sounds like the EGR valve itself is probably bad, caked with carbon maybe stuck open or more likely closed from what you are describing.. I say if it ain't broke..... might be an excuse to remove your intake manifold at some point, clean it all up, port it and remove all that emissions stuff for real.
Reply
Old Mar 7, 2009 | 08:22 AM
  #16  
lifeisgood's Avatar
11 Second Club
iTrader: (4)
 
Joined: Oct 2006
Posts: 1,029
Likes: 0
From: ky
Default

Originally Posted by multmigs
Sounds like the EGR valve itself is probably bad, caked with carbon maybe stuck open or more likely closed from what you are describing.. I say if it ain't broke..... might be an excuse to remove your intake manifold at some point, clean it all up, port it and remove all that emissions stuff for real.
yes!!!!!!!damn.lol this is whats wrong your getting egr gas back into the combustion chamber and causing it to run like ****.
you can either leave it unplugged of get another egr.
you never mentioned the car was like that from a previous owner.
hell he could have had the light turned off with a tune
Reply




All times are GMT -5. The time now is 09:56 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