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ecm to none ecm

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Old Dec 14, 2011 | 06:22 PM
  #1  
jloomis95's Avatar
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From: CONNECTICUT
Car: 1992 CAMARO RS 25TH ANNIVERSARY
Engine: 3.1 V6
Transmission: AUTOMAGIC
Axle/Gears: STOCK
ecm to none ecm

When swapping my 3.1 v6 to a 5.0 v8 i want to remove the wiring harness and clean up the wiring. Could i buy a universal wiring harness like this one?
http://www.summitracing.com/parts/SUM-890020/?rtype=10
To replace my current one. thanks for any help!
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Old Dec 14, 2011 | 07:39 PM
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Re: ecm to none ecm

for a little more money you can get this harness. if you ate just replacing the tbi harness. or buy a used harness as i did and undo it, string it out, and do it your way.
http://www.summitracing.com/search/?...0harness&dds=1
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Old Dec 14, 2011 | 08:13 PM
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vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: ecm to none ecm

Originally Posted by jloomis95
When swapping my 3.1 v6 to a 5.0 v8
With a carb?

Originally Posted by jloomis95
i want to remove the wiring harness and clean up the wiring.
Could i buy a universal wiring harness like this one?
To replace my current one.
That is a complete body harness (lights etc ),
Only good for a carb engine , has no engine controls if running TBI / TPI
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Old Dec 14, 2011 | 09:16 PM
  #4  
jloomis95's Avatar
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From: CONNECTICUT
Car: 1992 CAMARO RS 25TH ANNIVERSARY
Engine: 3.1 V6
Transmission: AUTOMAGIC
Axle/Gears: STOCK
Re: ecm to none ecm

i want to make it carb. I want to remove the older ecm and wiring harness and put in a new one for my v8 carbed engine. No engine control just my lights, door locks, interior light, stereo, etc... would the one i posted be what i am looking for? if not would you mind sending me a like to one? thanks
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Old Dec 14, 2011 | 09:21 PM
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Re: ecm to none ecm

well if you are going to go carb then just trim yours up some. that would be the most cost effective. and if you unloom and untape yours you can pretty much run it the way you want. and trim out what you dont need.
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Old Dec 14, 2011 | 09:29 PM
  #6  
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From: Fl.
Car: 83 Trans Am / 96 Jeep XJ
Engine: 355 / 4.0 I6
Transmission: TH350 / Auto
Axle/Gears: 3.23 10-bolt / 4wd
Re: ecm to none ecm

The wiring for the lights/horn, etc.. are a seperate plug from engine controls, and seperate from ECM wiring. The C100 (Plug by the brake booster) is actually in two pieces and will come off with a 1/4" socket down the center. I thinned out my wiring harness for my t/a, and just left all the lighting harness still ran/hooked up and didnt have to touch it.

I went from this:

Name:  2011-11-07_14-50-06_501.jpg
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Size:  148.5 KB

To this:

Name:  2011-11-07_16-28-14_749.jpg
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Size:  110.9 KB

On mine, I decided to keep all AC wiring in-tact because I plan on keeping it, and I am also not running a wire for TCC, so it isnt there either. Run it how you want it, and you'll be fine.
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Old Dec 14, 2011 | 09:47 PM
  #7  
jloomis95's Avatar
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From: CONNECTICUT
Car: 1992 CAMARO RS 25TH ANNIVERSARY
Engine: 3.1 V6
Transmission: AUTOMAGIC
Axle/Gears: STOCK
Re: ecm to none ecm

alright, thanks for the info. better idk then buying a new one.
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Old Dec 16, 2011 | 06:37 PM
  #8  
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From: Arlington, Tx
Car: 91 Camaro RS
Engine: empty bay (for now)
Transmission: Built T-56
Axle/Gears: 3.42 stock posi disc
Re: ecm to none ecm

theres a few threads, (one made by pocket inparticular) that shows what all you can trim from the stock harness when swapping to a carbed setup. i used it when doing my first carbed swap.
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