PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

need help with my wiring harness

Thread Tools
 
Search this Thread
 
Old Feb 13, 2010 | 12:44 PM
  #1  
Taubr Unit's Avatar
Thread Starter
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (32)
 
Joined: Nov 2005
Posts: 4,155
Likes: 31
From: Chicago
Default need help with my wiring harness

Next on my build is my electronic section. I want to have the PCM a stand-alone unit for the engine and then hard wire the car for headlights, tail lights, turn signals etc. For the engine harness what all sensors do i NEED? Im running SD (boosted motor) and a 2-bar MAP. If i run open loop, or which ever doesnt use the o2's for referance, can i get rid of the o2 wires out of the harness? Also ill have autometer water, oil gauges so can i not run them sensors also or will it play games with the PCM? Basically i want to run the bare minimum wires and use the PCM as a stand-alone unit mounted inside the car. And will the PCM need anything from the body harness to work as well? Like anything from the gauge cluster? Sorry for all the questions but this wiring part is a whole new ball game for me. What do you guys think?

*edit* also running a RMVB th350 so i dont need any trans plugs either, and running a a1000 fuel pump so no fuel relays or wires eaither, only for the fuel gauge for my cluster

Last edited by Taubr Unit; Feb 13, 2010 at 01:15 PM.
Reply
Old Feb 13, 2010 | 02:26 PM
  #2  
darkhorizon's Avatar
On The Tree
 
Joined: Sep 2007
Posts: 198
Likes: 0
Default

you can dump whatever you are not using.. EGR/AIR pump/Evap/o2 sensors, straight out of the harness. You also should not need any body harness bits either, but I am not 100% sure of that.

Remember to hook a 'always on', and switched power to the proper spots on the PCM.
Reply




All times are GMT -5. The time now is 08:10 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