Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

ECU question

Thread Tools
 
Search this Thread
 
Old Jun 19, 2017 | 10:16 AM
  #1  
Dinosport's Avatar
Thread Starter
Teching In
 
Joined: Apr 2016
Posts: 42
Likes: 0
Default ECU question

I have an ly6 which is a 58tooth reluctor. I have an ecu from a 2000 tahoe so to make that work I need a converter box. y question is If bought an ls3 ecu instead of the converter box will I be able to use a drive by cable throttle body with it? Or will I need a Drive by wire throttle body for it to work right? Has anybody come across this before?
Reply
Old Jun 20, 2017 | 01:02 PM
  #2  
Pocket's Avatar
TECH Addict
15 Year Member
iTrader: (22)
 
Joined: Apr 2009
Posts: 2,659
Likes: 149
From: NC
Default

All GEN IV ECMs require DBW, they do not have IAC drivers so cable is out of the question

You can either use the converter box, press on a 24x reluctor or use an aftermarket control system that supports 58x and DBC (Holley etc)
Reply
Old Jun 20, 2017 | 02:51 PM
  #3  
Dinosport's Avatar
Thread Starter
Teching In
 
Joined: Apr 2016
Posts: 42
Likes: 0
Default

Originally Posted by Pocket
All GEN IV ECMs require DBW, they do not have IAC drivers so cable is out of the question

You can either use the converter box, press on a 24x reluctor or use an aftermarket control system that supports 58x and DBC (Holley etc)
Thanks. Ive been learning a little more about it all. Its a little tougher when your trying to make things work with parts from overr such a wide range of years
Reply
Old Jun 20, 2017 | 07:09 PM
  #4  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,617
Likes: 1,883
From: Little Austin
Default

Originally Posted by Dinosport
Thanks. Ive been learning a little more about it all. Its a little tougher when your trying to make things work with parts from overr such a wide range of years
Just keep the Gen 3 hardware and electronics together....same for gen 4...

Andrew
Reply
Old Jun 21, 2017 | 07:17 AM
  #5  
Dinosport's Avatar
Thread Starter
Teching In
 
Joined: Apr 2016
Posts: 42
Likes: 0
Default

Originally Posted by Project GatTagO
Just keep the Gen 3 hardware and electronics together....same for gen 4...

Andrew
Yes. My issues are I have a 2014 58tooth motor, but a 700r4 trans that I want to use. So I thought I needed a cable throttle body for the kickdown cable. All ecus that run dbc are 24 tooth. Thats why I sourced the 2000 tahoe ecu. And figured I would run the converter box. Now I know somebody that said they ran the cable direct to the pedal with some bracket they made up, and they will let me copy it. So now Im thinking maybe I should try that and run a 58tooth ecu instead of the 24 tooth ecu. Itll cost me about the same to get the ecu and pedal as buying the converter box. But if for some reason the cable to the pedal doesnt work well I was wondering if I could then use a dbc with the 58 tooth ecu. But that wont work. Going stick would be great. Eliminate all the cable headaches but If I go stick I want a t56 and there a little out of my price range right now.
Reply
Old Jun 21, 2017 | 11:14 AM
  #6  
Pocket's Avatar
TECH Addict
15 Year Member
iTrader: (22)
 
Joined: Apr 2009
Posts: 2,659
Likes: 149
From: NC
Default

Lots of work to reuse a dinosaur of a trans. Easier to run an electronic trans and skip all that hassle
Reply
Old Jun 21, 2017 | 12:03 PM
  #7  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,617
Likes: 1,883
From: Little Austin
Default

Originally Posted by Pocket
Lots of work to reuse a dinosaur of a trans. Easier to run an electronic trans and skip all that hassle
Agreed. A 4L60e has the same dimension as a 700r...

Andrew
Reply
Old Jun 21, 2017 | 12:29 PM
  #8  
Dinosport's Avatar
Thread Starter
Teching In
 
Joined: Apr 2016
Posts: 42
Likes: 0
Default

Originally Posted by Pocket
Lots of work to reuse a dinosaur of a trans. Easier to run an electronic trans and skip all that hassle

I agree. I was trying stay on a budget and use as much as I already have. If I buy a trans I really would like to go with a t56, problem is there a little out of my price range for now. So I was hoping to get it running with the 700r4 and then later down the road swap to the t56.
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




All times are GMT -5. The time now is 06:07 AM.

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