Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

LS1 not making power

Thread Tools
 
Search this Thread
 
Old Apr 30, 2013 | 05:55 PM
  #21  
peteggl's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2013
Posts: 125
Likes: 1
From: HAvelock NC
Default

it's not my one bad experience, my uncle is the local engine builder here and you should see the crap he has had to fix because the people there don't know how to install a cam or any other engine mods
Reply
Old Apr 30, 2013 | 05:58 PM
  #22  
peteggl's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2013
Posts: 125
Likes: 1
From: HAvelock NC
Default

and by the way he was changing my fuel pump, you can explain to memos that = a new fan and electric switch that I have to turn on and off everytime I get in the car I'd like to hear it
Reply
Old Apr 30, 2013 | 10:18 PM
  #23  
peteggl's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2013
Posts: 125
Likes: 1
From: HAvelock NC
Default

Checked the codes again throwing 2 more codes for knock sensors
Reply
Old May 1, 2013 | 11:35 AM
  #24  
LS1T56FTW's Avatar
TECH Enthusiast
iTrader: (3)
 
Joined: Dec 2009
Posts: 574
Likes: 1
From: Buffalo, NY
Default

Knock sensors won't cause that big of an issue, there has to be something else.
Reply
Old May 2, 2013 | 12:13 PM
  #25  
peteggl's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2013
Posts: 125
Likes: 1
From: HAvelock NC
Default

well I was going to get the knock sensors tuned out but my tuner thinks the o2 sensors may be plugged in backwards after the transmission was installed I guess I'll try that next
Reply
Old May 2, 2013 | 12:22 PM
  #26  
SSellers's Avatar
Launching!
 
Joined: Jun 2005
Posts: 277
Likes: 0
From: SC
Default

Have whoever did the trans check your trans pressures. I got a freshly done 700R4 once that acted similar and it was the pump. Or they put a deep pan on it with a short pan filter.
Reply
Old May 2, 2013 | 03:15 PM
  #27  
peteggl's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2013
Posts: 125
Likes: 1
From: HAvelock NC
Default

what would be signs of the transmission pressures being messed up? it shofts perfect
Reply
Old May 3, 2013 | 10:24 AM
  #28  
peteggl's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2013
Posts: 125
Likes: 1
From: HAvelock NC
Default

went under to look at my o2 sensors and here is what I found, looks like it could possibly mess things up

https://i.imgur.com/aC8uWz9.jpg
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old May 3, 2013 | 11:04 AM
  #29  
DACTARI's Avatar
TECH Resident
10 Year Member
iTrader: (1)
 
Joined: May 2012
Posts: 801
Likes: 6
From: Seattle, WA
Default

Originally Posted by peteggl
went under to look at my o2 sensors and here is what I found, looks like it could possibly mess things up

https://i.imgur.com/aC8uWz9.jpg
Yikes.
Reply
Old May 3, 2013 | 12:09 PM
  #30  
LIQUIDZ28's Avatar
Teching In
 
Joined: Jun 2012
Posts: 38
Likes: 0
From: Tacoma WA!
Default

Originally Posted by peteggl
how do I data log a knock?
if you have an android phone get the torque app for it like 5 bux, then all you need is a bluetooth obd2 adapter.
I use the kiwi brand adapter ill see if i can find the link.
http://www.jegs.com/i/PLX+Devices/68...TOOTH/10002/-1
there is cheaper alternatives, but i live by mine and this brand is tried and prooven to be reliable. I would hate to plug in a "knockoff" brand for 25 bux and fry my ECU. just my 2 cents.
Reply
Old May 3, 2013 | 12:11 PM
  #31  
LIQUIDZ28's Avatar
Teching In
 
Joined: Jun 2012
Posts: 38
Likes: 0
From: Tacoma WA!
Default

Originally Posted by peteggl
went under to look at my o2 sensors and here is what I found, looks like it could possibly mess things up

https://i.imgur.com/aC8uWz9.jpg
HOLY WTF!
they must have forgotten to unplug it and tore it right out.
good thing is thats just normal wire so you can fix this.
Reply
Old May 3, 2013 | 01:22 PM
  #32  
LS1T56FTW's Avatar
TECH Enthusiast
iTrader: (3)
 
Joined: Dec 2009
Posts: 574
Likes: 1
From: Buffalo, NY
Default

Originally Posted by peteggl
went under to look at my o2 sensors and here is what I found, looks like it could possibly mess things up

https://i.imgur.com/aC8uWz9.jpg
Is that for the rear O2 sensors, or the front?
Reply
Old May 3, 2013 | 01:27 PM
  #33  
peteggl's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2013
Posts: 125
Likes: 1
From: HAvelock NC
Default

Originally Posted by LS1T56FTW
Is that for the rear O2 sensors, or the front?
I'm pretty sure it's the front I don't think I have rear ones
Reply
Old May 3, 2013 | 01:42 PM
  #34  
DACTARI's Avatar
TECH Resident
10 Year Member
iTrader: (1)
 
Joined: May 2012
Posts: 801
Likes: 6
From: Seattle, WA
Default

Originally Posted by peteggl
I'm pretty sure it's the front I don't think I have rear ones
No wonder you're car has been heating up. You will have been running insanely lean.
Reply
Old May 3, 2013 | 04:44 PM
  #35  
LS1T56FTW's Avatar
TECH Enthusiast
iTrader: (3)
 
Joined: Dec 2009
Posts: 574
Likes: 1
From: Buffalo, NY
Default

Well, I would fix the wire, and actually plug the O2 sensors in. Might not be a bad idea to get some new ones either. I am very surprised that the car did not throw any codes for that.
Reply
Old May 3, 2013 | 04:49 PM
  #36  
smws6ta's Avatar
Launching!
iTrader: (5)
 
Joined: Jan 2010
Posts: 237
Likes: 2
Default

Originally Posted by peteggl
went under to look at my o2 sensors and here is what I found, looks like it could possibly mess things up

https://i.imgur.com/aC8uWz9.jpg
I know that shop would be buying me a new wire harness.
Reply
Old May 3, 2013 | 05:02 PM
  #37  
peteggl's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2013
Posts: 125
Likes: 1
From: HAvelock NC
Default

I've got the wire fixed back up but it doesn't really seem to have made any difference, I read somewhere the codes need to be cleared before it makes a difference is that true?

and it was the o2 sensor where the exhaust connect to the header is that front or rear? because I only see 1 on each side
Reply
Old May 3, 2013 | 11:54 PM
  #38  
smws6ta's Avatar
Launching!
iTrader: (5)
 
Joined: Jan 2010
Posts: 237
Likes: 2
Default

yes, need to clear codes. Disconnect both cables off the battery for 30 mins.

You should have 2 O2 WH that are near the front of the Bell housing and 2 more that are along the transmission. If they are plug into the ones next to the tranny your PCM might be getting no/incorrect data.
Reply
Old May 4, 2013 | 10:42 PM
  #39  
peteggl's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2013
Posts: 125
Likes: 1
From: HAvelock NC
Default

well I replaced the o2 sensor harness or whatever that thing is called and now my car runs like absolute crap, like it did before I installed y converter with my cam. it cuts off if I don't let it warm up before putting it in gear and when I do get it going it just has nothing at all
Reply
Old May 4, 2013 | 10:53 PM
  #40  
Redbull87's Avatar
12 Second Club
Photogenic
Photoriffic
Shutterbug
Liked
iTrader: (3)
 
Joined: Nov 2010
Posts: 808
Likes: 62
From: Toronto Ontario Canada
Default

+1 vote for everyone to get the torque app and elm 327 obd2 bluetooth adapter.it helped me fix my random misfires.

now your car seems to have gone from bad to worse.did you clear the codes after fixing the o2 sensor harness,is the other side o2 sensor ok?
Reply



All times are GMT -5. The time now is 10:43 PM.

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