LS1TECH - Camaro and Firebird Forum Discussion

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

got another problem ... help please

Thread Tools
 
Search this Thread
 
Old Apr 8, 2009 | 05:56 PM
Share
  #1  
saylorZ28's Avatar
saylorZ28
Thread Starter
TECH Regular
iTrader: (6)
 
Joined: Nov 2007
Posts: 443
Likes: 1
From: cumberland ky.
Default got another problem ... help please
ok got my car fix again after lifters froze and and everything else that happened done normal break in of cam got everything back together and drove it it seem to be fine but then it started not wanting to idle at all ... pulled codes and all that came up is 141 for left bank o2 heater malfunction.. and misfire detected... now it will not run unless you give it fuel and low oil pressurehas new opti plugs wires checked all that and nutn wrong there ... do i need a lt4 knock module or what ... but break down of what i got ... cc503 and comp pro mags rr 1.6 comp magnum push rods lpp lt's and new opti plus wires and everything .. any insight will be greatly appreiciated
Reply
0
Old Apr 8, 2009 | 06:00 PM
Share
  #2  
ss.slp.ls1's Avatar
ss.slp.ls1
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default
Originally Posted by saylorZ28
ok got my car fix again after lifters froze and and everything else that happened done normal break in of cam got everything back together and drove it it seem to be fine but then it started not wanting to idle at all ... pulled codes and all that came up is 141 for left bank o2 heater malfunction.. and misfire detected... now it will not run unless you give it fuel and low oil pressurehas new opti plugs wires checked all that and nutn wrong there ... do i need a lt4 knock module or what ... but break down of what i got ... cc503 and comp pro mags rr 1.6 comp magnum push rods lpp lt's and new opti plus wires and everything .. any insight will be greatly appreiciated
How old are your o2 sensors? Is it tuned?
Reply
0
Old Apr 8, 2009 | 06:18 PM
Share
  #3  
saylorZ28's Avatar
saylorZ28
Thread Starter
TECH Regular
iTrader: (6)
 
Joined: Nov 2007
Posts: 443
Likes: 1
From: cumberland ky.
Default
no it isn't tuned yet but i unplugged the rear sensor and it is running good now ... it semms isn't there and o2 mod because the rear just needs to be out of the exhausr stream cause it reads the the same reading it causes it not to run i read it somewhere and it was just to technical to explain ..
Reply
0
Old Apr 8, 2009 | 06:19 PM
Share
  #4  
shutzero's Avatar
shutzero
TECH Enthusiast
 
Joined: Sep 2008
Posts: 636
Likes: 0
From: Cheshire, CT
Default
Sounds like o2 sensors or it will need a tune for that cam if u haven't gotten one already like ssslp said.
Reply
0
Old Apr 8, 2009 | 06:20 PM
Share
  #5  
ss.slp.ls1's Avatar
ss.slp.ls1
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default
Originally Posted by saylorZ28
no it isn't tuned yet but i unplugged the rear sensor and it is running good now ... it semms isn't there and o2 mod because the rear just needs to be out of the exhausr stream cause it reads the the same reading it causes it not to run i read it somewhere and it was just to technical to explain ..
Rear o2's do nothing for performance, they just monitor the catalytic converters. Front o2's actually affect the A/F ratio. Not sure but your codes could be caused by the fact that you are untuned. I would get a mail ordered tune from MadTuner ASAP and then troubleshoot from there.
Reply
0
Old Apr 8, 2009 | 07:56 PM
Share
  #6  
saylorZ28's Avatar
saylorZ28
Thread Starter
TECH Regular
iTrader: (6)
 
Joined: Nov 2007
Posts: 443
Likes: 1
From: cumberland ky.
Default
yea i need a tune but the low oil pressure has got me puzzled ..it held great oil pressure b4 the swap and now it dont ...not at dle anyway ...i changed the oil and it help but when i drove it it done the same thing
Reply
0
Old Apr 9, 2009 | 08:59 AM
Share
  #7  
EAO SHOT's Avatar
EAO SHOT
Teching In
 
Joined: Jul 2007
Posts: 43
Likes: 0
From: Northwest of Milwaukee, WI
Default
Try a K&N oil filter. They will give you more oil pressure and that might be all you need.
Reply
0

Trending Topics

Old Apr 9, 2009 | 09:15 AM
Share
  #8  
xx_ED_xx's Avatar
xx_ED_xx
TECH Addict
15 Year Member
iTrader: (17)
 
Joined: Jun 2007
Posts: 2,175
Likes: 0
Default
I would put a quality gauge directly on the engine and test it. make sure your cluster isn't the culprit. My lt1 would read 20 pounds on a quality gauge hot at idle but if i plugged in the new sending unit. IT would read 5 at idle
Reply
0
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 Apr 9, 2009 | 10:51 AM
Share
  #9  
saylorZ28's Avatar
saylorZ28
Thread Starter
TECH Regular
iTrader: (6)
 
Joined: Nov 2007
Posts: 443
Likes: 1
From: cumberland ky.
Default
this is bad if i have to rebuild .. but owell i can always go bigger lol
Reply
0
Old Apr 9, 2009 | 11:03 AM
Share
  #10  
sweetbmxrider's Avatar
sweetbmxrider
TECH Addict
iTrader: (13)
 
Joined: Sep 2008
Posts: 2,768
Likes: 3
From: jersey shore
Default
Originally Posted by xx_ED_xx
I would put a quality gauge directly on the engine and test it. make sure your cluster isn't the culprit. My lt1 would read 20 pounds on a quality gauge hot at idle but if i plugged in the new sending unit. IT would read 5 at idle
do this. lt1's do tend to have low oil pressure at idle though. get a tune though!
Reply
0
Old Apr 9, 2009 | 12:46 PM
Share
  #11  
saylorZ28's Avatar
saylorZ28
Thread Starter
TECH Regular
iTrader: (6)
 
Joined: Nov 2007
Posts: 443
Likes: 1
From: cumberland ky.
Default
yea well oil pressure is fine when you first start it then after it warms up it drops way low
Reply
0
Old Apr 9, 2009 | 12:49 PM
Share
  #12  
ss.slp.ls1's Avatar
ss.slp.ls1
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default
Originally Posted by saylorZ28
yea well oil pressure is fine when you first start it then after it warms up it drops way low
What exactly is way low?
Reply
0
Old Apr 9, 2009 | 01:32 PM
Share
  #13  
saylorZ28's Avatar
saylorZ28
Thread Starter
TECH Regular
iTrader: (6)
 
Joined: Nov 2007
Posts: 443
Likes: 1
From: cumberland ky.
Default
well it slowly drops and it dont bottom out but i would say just above the bottom line
Reply
0
Old Apr 9, 2009 | 04:12 PM
Share
  #14  
sweetbmxrider's Avatar
sweetbmxrider
TECH Addict
iTrader: (13)
 
Joined: Sep 2008
Posts: 2,768
Likes: 3
From: jersey shore
Default
yeah i'd still stick a gauge directly on the engine. elimination leads to problem solved.
Reply
0
Back to Subforum
LT1-LT4 Modifications
View Next Unread
95lt1 in a 97ws6




Advanced Search

All times are GMT -5. The time now is 12:21 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