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

few questions

Thread Tools
 
Search this Thread
 
Old Aug 10, 2009 | 06:05 PM
  #1  
97badass's Avatar
Thread Starter
TECH Fanatic
iTrader: (8)
 
Joined: Sep 2007
Posts: 1,823
Likes: 0
From: Hillsboro Kansas
Default few questions

how important is a tune with a cai, tb delete, 1le elbow, and the egr and air deleted?

i started my car up and finally got it to idle after fixing the vaccum leaks but it idles really rough like it has a cam in it, and the exhaust smells awful... i know i still have to block the holes in the manifolds for the exhaust leaks...but could that effect the idle? it sounds great when you rev it up a little.

http://www.axcessmypics.com/photos/p...789b50f215.3g2

Last edited by 97badass; Aug 10, 2009 at 06:16 PM.
Reply
Old Aug 10, 2009 | 06:10 PM
  #2  
Z28Camaro30Ann's Avatar
12 Second Club
iTrader: (15)
 
Joined: Mar 2007
Posts: 1,928
Likes: 0
From: Cheyenne, Wy
Default

If you deleted the EGR and AIR it will pop codes...the elbow, and cai shouldnt effect how it runs much if any at all. For some reason I cant think of what a tb delete is...do you mean tb bypass? Are the holes in the back of the intake manifold still wide open while your running it??
Reply
Old Aug 10, 2009 | 06:10 PM
  #3  
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

Originally Posted by 97badass
how important is a tune with a cai, tb delete, 1le elbow, and the egr and air deleted?

i started my car up and finally got it to idle after fixing the vaccum leaks but it idles really rough like it has a cam in it, and the exhaust smells awful... i know i still have to block the holes in the manifolds for the exhaust leaks...but could that effect the idle? it sounds great when you rev it up a little.
A tune will be beneficial, but it is not essential. You need to find out what's causing it to run rough...exhaust leaks will cause the o2's to read off. Are you sure you covered all possible vacuum leaks?
Reply
Old Aug 10, 2009 | 06:17 PM
  #4  
97badass's Avatar
Thread Starter
TECH Fanatic
iTrader: (8)
 
Joined: Sep 2007
Posts: 1,823
Likes: 0
From: Hillsboro Kansas
Default

yeah the tb bypass... i was in a hurry lol... and yeah all vaccum leaks are sealed. just got to seal up the exhaust leaks.
Reply
Old Aug 10, 2009 | 06:18 PM
  #5  
97badass's Avatar
Thread Starter
TECH Fanatic
iTrader: (8)
 
Joined: Sep 2007
Posts: 1,823
Likes: 0
From: Hillsboro Kansas
Default

here is a link to the video of it running for the start up.

http://www.axcessmypics.com/photos/p...789b50f215.3g2
Reply
Old Aug 10, 2009 | 06:25 PM
  #6  
Z28Camaro30Ann's Avatar
12 Second Club
iTrader: (15)
 
Joined: Mar 2007
Posts: 1,928
Likes: 0
From: Cheyenne, Wy
Default

sounds like you have another problem. The mods you did should not effect the computer or how the car runs. I had heads, intake, exhaust, egr delete, .040 overbore, 160*tstat, underdrive pulley, and headers with no tune and didnt have near that problem...mine ran good, but not up to its potential...
Reply
Old Aug 10, 2009 | 06:26 PM
  #7  
Z28Camaro30Ann's Avatar
12 Second Club
iTrader: (15)
 
Joined: Mar 2007
Posts: 1,928
Likes: 0
From: Cheyenne, Wy
Default

is your map sensor connected? MAF plugged in? all plugs for that matter plugged in?
Reply
Old Aug 10, 2009 | 08:06 PM
  #8  
97badass's Avatar
Thread Starter
TECH Fanatic
iTrader: (8)
 
Joined: Sep 2007
Posts: 1,823
Likes: 0
From: Hillsboro Kansas
Default

i also have a 160 t-stat in. but whats weird is no water temp but maxxed out oil pressure.... from what i have read is either pcv valve or the oil pump and the pcv valve rattles. any other ideas?
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 Aug 10, 2009 | 08:16 PM
  #9  
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

Check your fuses. Both inside the car and under the hood.
Reply
Old Aug 10, 2009 | 08:18 PM
  #10  
97badass's Avatar
Thread Starter
TECH Fanatic
iTrader: (8)
 
Joined: Sep 2007
Posts: 1,823
Likes: 0
From: Hillsboro Kansas
Default

i forgot to plug it back in lol duh but idk about the coolant temp... brand new sensor just bought it today... and i know its plugged in.
Reply
Old Aug 10, 2009 | 08:33 PM
  #11  
Z28Camaro30Ann's Avatar
12 Second Club
iTrader: (15)
 
Joined: Mar 2007
Posts: 1,928
Likes: 0
From: Cheyenne, Wy
Default

make sure it is plugged in and not shorting out! I recognize this now! I had this exact thing happen to me not long ago. My Coolant Tempurature Sensor came unplugged and grounded out on the header...as soon as it did my oil pressure maxed out, coolant temp bottomed out, and check gauges light came on. My idle fell apart and it seemed like it was running out of gas. Eventually it died and would not start.

I found that plug and hooked it back up and it cleared up completely. No issues since.
Reply
Old Aug 11, 2009 | 06:48 AM
  #12  
97badass's Avatar
Thread Starter
TECH Fanatic
iTrader: (8)
 
Joined: Sep 2007
Posts: 1,823
Likes: 0
From: Hillsboro Kansas
Default

the oil pressure was due to it not being plugged in stupid mistake. the crappy idle went away when i unplugged the MAF sensor... so i guess its junk or just needs cleaned. we will figure that out today. the only thing left to figure out is the temperature not working.

thanks to shbox i figured out i had another temp plug hidden in there... now i just have to figure out where its hiding at

Last edited by 97badass; Aug 11, 2009 at 06:58 AM.
Reply
Old Aug 11, 2009 | 07:42 AM
  #13  
monster81's Avatar
TECH Regular
 
Joined: Oct 2008
Posts: 430
Likes: 0
From: Bahrain
Default

is ur MAF descrened ?
Reply
Old Aug 11, 2009 | 11:24 AM
  #14  
97badass's Avatar
Thread Starter
TECH Fanatic
iTrader: (8)
 
Joined: Sep 2007
Posts: 1,823
Likes: 0
From: Hillsboro Kansas
Default

nope stock maf just really dirty.
Reply
Old Aug 11, 2009 | 11:24 AM
  #15  
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

Originally Posted by 97badass
nope stock maf just really dirty.
Get some MAF cleaner...
Reply




All times are GMT -5. The time now is 12:29 PM.

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