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

need help!!

Thread Tools
 
Search this Thread
 
Old Jan 19, 2015 | 06:21 PM
  #1  
vissiajs's Avatar
Thread Starter
Teching In
 
Joined: May 2013
Posts: 26
Likes: 0
From: north idaho
Default need help!!

So a supposed shop that does ls swaps did my swap. I have an lq9 being ran by a fast ez efi\ fast xim. In a 92 Silverado, the only guages they could get to work was fuel and battery. They completely cut out the factory harness. From what I can find I'm going to have to get Dakota digital mgi-5/8 to run my tack and speedo. Am I able to wire the therm. And oil pressure direct?
Reply
Old Jan 19, 2015 | 06:52 PM
  #2  
redline2k's Avatar
10 Second Club
iTrader: (9)
 
Joined: Jan 2004
Posts: 560
Likes: 0
From: Daytona Beach, FL
Default

Originally Posted by vissiajs
So a supposed shop that does ls swaps did my swap. I have an lq9 being ran by a fast ez efi\ fast xim. In a 92 Silverado, the only guages they could get to work was fuel and battery. They completely cut out the factory harness. From what I can find I'm going to have to get Dakota digital mgi-5/8 to run my tack and speedo. Am I able to wire the therm. And oil pressure direct?
You should be able to wire a temp sensor and oil pressure back to the dash. I would not try to piggy back with any sensors that the FAST uses. That can lead to inaccurate readings.
Reply
Old Jan 19, 2015 | 07:02 PM
  #3  
vissiajs's Avatar
Thread Starter
Teching In
 
Joined: May 2013
Posts: 26
Likes: 0
From: north idaho
Default ok

Originally Posted by redline2k
You should be able to wire a temp sensor and oil pressure back to the dash. I would not try to piggy back with any sensors that the FAST uses. That can lead to inaccurate readings.
I wasn't sure if they went to ecm first like the speedo and tach does.
Reply
Old Jan 19, 2015 | 09:36 PM
  #4  
redline2k's Avatar
10 Second Club
iTrader: (9)
 
Joined: Jan 2004
Posts: 560
Likes: 0
From: Daytona Beach, FL
Default

Originally Posted by vissiajs
I wasn't sure if they went to ecm first like the speedo and tach does.
The ecu has an engine coolant temp sensor, but no oil pressure sensor. You just need to add the 2 sensors and wire to dash. The temp wire on the dash should be green, and the oil pressure should be tan.
Reply
Old Jan 20, 2015 | 07:19 PM
  #5  
vissiajs's Avatar
Thread Starter
Teching In
 
Joined: May 2013
Posts: 26
Likes: 0
From: north idaho
Default thank you

Originally Posted by redline2k
The ecu has an engine coolant temp sensor, but no oil pressure sensor. You just need to add the 2 sensors and wire to dash. The temp wire on the dash should be green, and the oil pressure should be tan.
Thank you very much.
Reply




All times are GMT -5. The time now is 03:31 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