PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Question about the 430HP LS3 engine controller kit

Thread Tools
 
Search this Thread
 
Old Apr 5, 2015 | 07:59 PM
  #1  
extra_slick's Avatar
Thread Starter
Teching In
 
Joined: Apr 2015
Posts: 5
Likes: 0
Default Question about the 430HP LS3 engine controller kit

Hello,

I've come across the engine controller kits for the LS3 at summit racing, they look appealing as I'm planning a build where an LS3 is swapped into an old 3-series bmw. There's a nice kit that has the engine mounts, transmission mounts and crossmember, headers, and exhaust system from the headers-back. There are no catalytic converters in the pre-fabricated exhaust system, however the controller kit has a pre-cat oxygen sensor and post-cat oxygen sensor. What can I do about the second oxygen sensor? What are my options? Thanks.
Reply
Old Apr 5, 2015 | 08:34 PM
  #2  
mrvedit's Avatar
Moderator
15 Year Member
Photogenic
Photoriffic
Community Favorite
 
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
Default

It is easy for a tuner to disable the post-cat oxygen sensors.
What state are you in and how strict are the emissions tests?

Curious - are you installing in a E36? Have you seen any E36 with LSx swap build threads?
Reply
Old Apr 5, 2015 | 08:55 PM
  #3  
extra_slick's Avatar
Thread Starter
Teching In
 
Joined: Apr 2015
Posts: 5
Likes: 0
Default

Originally Posted by mrvedit
It is easy for a tuner to disable the post-cat oxygen sensors.
What state are you in and how strict are the emissions tests?

Curious - are you installing in a E36? Have you seen any E36 with LSx swap build threads?
It is an e36, and emissions isn't a factor as it will be a track car. What about o2 sensor emulators for the rear sensors and leaving the front ones alone and letting them do their job normally?

Last edited by extra_slick; Apr 5, 2015 at 09:17 PM.
Reply
Old Apr 7, 2015 | 11:52 AM
  #4  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,615
Likes: 1,883
From: Little Austin
Default

What ECU kit are you referring to? The GMPP kit? If so, it only uses 2 O2 sensors, not 4.

Andrew
Reply
Old Apr 7, 2015 | 12:38 PM
  #5  
extra_slick's Avatar
Thread Starter
Teching In
 
Joined: Apr 2015
Posts: 5
Likes: 0
Default

Originally Posted by Project GatTagO
What ECU kit are you referring to? The GMPP kit? If so, it only uses 2 O2 sensors, not 4.

Andrew
http://www.summitracing.com/parts/nal-19258270
Reply
Old Apr 7, 2015 | 12:49 PM
  #6  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,615
Likes: 1,883
From: Little Austin
Default

Originally Posted by extra_slick
Just two O2 sensors.Yyou can even see them in the picture.

Andrew
Reply




All times are GMT -5. The time now is 01:40 AM.

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