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

Still paying the price

Thread Tools
 
Search this Thread
 
Old Sep 25, 2008 | 09:10 PM
  #1  
wicked383lt1's Avatar
Thread Starter
TECH Enthusiast
15 Year Member
 
Joined: Aug 2008
Posts: 576
Likes: 1
From: En Casa del Carajo
Exclamation Still paying the price

Just changed the spark plugs.... The cars idle is still fluxuating. The car is also idling ruff when the a/c is running. The coil is new, the opti is also new. I can not figure out why the car is idling ruff. When driving the motor seems to run smooth. Please help...
Reply
Old Sep 25, 2008 | 10:31 PM
  #2  
Bajapat's Avatar
Launching!
iTrader: (2)
 
Joined: Oct 2005
Posts: 220
Likes: 0
From: Hartford CT
Default

wires????

I get a spark that jumps when my AC is on...I really need to get under there and replace my wires...

plus when the ac cluch hits it puts a load on the motor..
Reply
Old Sep 26, 2008 | 12:01 AM
  #3  
SS RRR's Avatar
Village Troll
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2002
Posts: 11,111
Likes: 598
From: Jackstandican
Default

Reads like either a possible misfire or vacuum leak.
Reply
Old Sep 26, 2008 | 12:07 AM
  #4  
xplod_69's Avatar
Teching In
 
Joined: Oct 2005
Posts: 17
Likes: 0
Default

I had the same problem. The idle would usually fluctuate when i was at a stop. thought it was a vacuum leak checked everything but found nothing, even replaced the computer. What it was, was the Opti. i changed that out an worked perfectly after that. since you said yours is new maybe the wires. but id try the opti on more time.
Reply
Old Sep 26, 2008 | 07:14 AM
  #5  
DAVE00's Avatar
TECH Fanatic
15 Year Member
iTrader: (10)
 
Joined: Jul 2007
Posts: 1,739
Likes: 2
From: Houston, TX
Default

Check your IAC valve, IAT and ICM. Could be one of these. Are you getting any codes thrown?
Reply
Old Sep 27, 2008 | 06:28 PM
  #6  
wicked383lt1's Avatar
Thread Starter
TECH Enthusiast
15 Year Member
 
Joined: Aug 2008
Posts: 576
Likes: 1
From: En Casa del Carajo
Default

I took my car to a local shop here miami fl. and they told me my distributor is giving out on me little by little.any suggestions on if I should go with a factory one or a high performance one.
Reply
Old Sep 27, 2008 | 06:57 PM
  #7  
CamaroRacing12's Avatar
11 Second Club
iTrader: (5)
 
Joined: Apr 2007
Posts: 3,779
Likes: 3
From: Haverhill, Mass
Default

your distributor = your optispark did u say it was new? check all ur wires, i feel like u have a burnt wire
Reply
Old Sep 28, 2008 | 05:00 PM
  #8  
jarretthise's Avatar
TECH Fanatic
iTrader: (9)
 
Joined: Dec 2007
Posts: 1,140
Likes: 1
From: crawfordsville, IN
Default

its probably one of your wires.. if you go through and check them you might have a loose tip that isnt on your opti all the way or maybe one is burnt, jsut check your wires really good..if its not your wires sounds like your car wasnt TDC when you put your opti in there....pull it back off if you cant find anything else out and put it TDC and then put it back on and then see what it does..
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 Sep 28, 2008 | 05:02 PM
  #9  
jarretthise's Avatar
TECH Fanatic
iTrader: (9)
 
Joined: Dec 2007
Posts: 1,140
Likes: 1
From: crawfordsville, IN
Default

Originally Posted by wicked383lt1
I took my car to a local shop here miami fl. and they told me my distributor is giving out on me little by little.any suggestions on if I should go with a factory one or a high performance one.
run with dynaspark or an acdelco one..but i really dont think its going out on you if its brand new...what brand is it?? do what i said in that last message and go from there....shops like to do that to ppl who dont want to dick with their cars to make good money on an easy fix....you dont want to get SCREWED!!
Reply
Old Sep 29, 2008 | 04:13 PM
  #10  
wicked383lt1's Avatar
Thread Starter
TECH Enthusiast
15 Year Member
 
Joined: Aug 2008
Posts: 576
Likes: 1
From: En Casa del Carajo
Default

the optispark is a MSD I have had it on for at least 6months. I have looked under the hood at night to see if I see something arching but nothing has showed up. I need advise on how to route my wires. everytime I try, one of them seem to get either burnt or cut by the serpentine belt. HELP
Reply
Old Sep 29, 2008 | 04:17 PM
  #11  
slomarao's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Dec 2007
Posts: 1,147
Likes: 0
From: chicago,IL
Default

I would do all the small things and then try to pin point it. O2's, iat, icm, check vac. lines, fuel filter, clean maf, tb, etc. Chances are its something small and stupid that gets over looked.
Reply
Old Sep 29, 2008 | 04:19 PM
  #12  
dante1313's Avatar
On The Tree
 
Joined: Feb 2008
Posts: 151
Likes: 0
Default

Originally Posted by wicked383lt1
Just changed the spark plugs.... The cars idle is still fluxuating. The car is also idling ruff when the a/c is running. The coil is new, the opti is also new. I can not figure out why the car is idling ruff. When driving the motor seems to run smooth. Please help...
i got the same problem. but my mechanic told me its my air compressor
Reply
Old Sep 29, 2008 | 04:21 PM
  #13  
wicked383lt1's Avatar
Thread Starter
TECH Enthusiast
15 Year Member
 
Joined: Aug 2008
Posts: 576
Likes: 1
From: En Casa del Carajo
Default

So you think I have should have it put on the computer and do u think the computer would tell me if any of those things are messed up? Is that called a diagnostic computer? sorry never have had to do anything like this.
Reply
Old Sep 29, 2008 | 08:31 PM
  #14  
phirepower's Avatar
TECH Resident
iTrader: (2)
 
Joined: Nov 2006
Posts: 958
Likes: 0
From: Mass
Default

Originally Posted by CamaroRacing12
your distributor = your optispark did u say it was new? check all ur wires, i feel like u have a burnt wire
+1

run your car in pitch blackness if they are arcing you'll see it
Reply
Old Oct 1, 2008 | 09:09 PM
  #15  
wicked383lt1's Avatar
Thread Starter
TECH Enthusiast
15 Year Member
 
Joined: Aug 2008
Posts: 576
Likes: 1
From: En Casa del Carajo
Default

it was the sparkplug wire closest to the firewall on the driverside when facing the car.I have a heat shield on that particular wire beacause it runs underneath the stock headers. If anyone has an idea on how to install that wire without it burning up on me please help me. thanks a million/ gas has raped my pocket with no lub!!!
Reply




All times are GMT -5. The time now is 12:33 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