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Aftermarket Wiring Harness any good???

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Old 11-28-2006, 02:13 PM
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Default Aftermarket Wiring Harness any good???

i havent found much on the Painless Wiring harness.

The car is pretty much turning into a race car and i want to get rid of all the useless wires (ie. egr, air, speakers, hvac, etc)

i just need the basics (ie, turn signals, brake lights, headlights, etc)

would it be easier to pull the wires from the PCM or buy a Painless Wiring Harness??

anyone with experience?
Old 11-28-2006, 02:18 PM
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this would be a good write up. im interested in it too.
Old 11-28-2006, 02:34 PM
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i'm useing a painless 6 circuit switch panel (PRF-50308) in mine to run the main things like, Start/Ign/Water pump/fan/fuel pump/ & 2 acc and will wire in my exterior lights seperate..it will take time to do but will eliminate alot of the useless wires

JR
Old 11-28-2006, 02:36 PM
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im talking about taking out wires that i dont need from the pcm, how can i do that? just trace them back and start snipping? ac, radio, speakers ect.......
Old 11-28-2006, 03:22 PM
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Originally Posted by jldak318
im talking about taking out wires that i dont need from the pcm, how can i do that? just trace them back and start snipping? ac, radio, speakers ect.......
I've done that and it's a pain in the *****. If you have the $700 it would probrably be easier to start off with a painless harness.

Here's something to look forward to. That's less than half the mess. I think I already had a trash can full of wires and insulation at this point.


Old 11-28-2006, 03:46 PM
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Originally Posted by GM Muscle
I've done that and it's a pain in the *****. If you have the $700 it would probrably be easier to start off with a painless harness.

Here's something to look forward to. That's less than half the mess. I think I already had a trash can full of wires and insulation at this point.


so is that a pic of the factory wires and you were removing the unnecessary stuff, or is that a Painless
Old 11-28-2006, 03:56 PM
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That's factory, if I remember right, I was about halfway through it when I took that pic. The connector under the steering collum (not in pic) is a complete nighmare if you don't have schematics. Main harness under the hood is a pain to.
Old 11-28-2006, 04:03 PM
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Originally Posted by GM Muscle
That's factory, if I remember right, I was about halfway through it when I took that pic. The connector under the steering collum (not in pic) is a complete nighmare if you don't have schematics. Main harness under the hood is a pain to.

hmmm...maybe i'll just leave all the wires as they are...

i still might pull some of the redundant ones from the PCM, ie. EGR, AIR, radio speakers,
Old 11-28-2006, 04:14 PM
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Go after them and get what you can. The radio and speaker harness is real easy. Airbag and emissions set up is easy too. After that it get's alittle tricky. Also, when you have the dash out cut that black pad off the fire wall, it's pretty heavy.

Even though my car has no power options it was wired for many power options. While it was a pain, it was worth it.
Old 11-28-2006, 04:18 PM
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Originally Posted by GM Muscle
Go after them and get what you can. The radio and speaker harness is real easy. Airbag and emissions set up is easy too. After that it get's alittle tricky. Also, when you have the dash out cut that black pad off the fire wall, it's pretty heavy.

Even though my car has no power options it was wired for many power options. While it was a pain, it was worth it.
i didnt think about the black pad, thanks. I pulled the dash and hvac out of the car last weekend.
Old 11-28-2006, 05:08 PM
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I started to do what GM Muscle did and that crap was frustrating. I ended up yanking all the wires out and I am gonna just go with a painless harness for the bare essentials.
Old 11-28-2006, 05:54 PM
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I ended up sending my stock harness to speartech to have it reworked. Im gonna just rewire the whole car with what I need. It just seemed like it would be way easier to start from scratch. I should get mine back in a week or two. I will post back with pics when i get it.
Old 11-29-2006, 04:34 PM
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It's a big time investment if you do it yourself. I bet I have 80-100 hours on harness rework. Even at $10 an hour, that's $800-$1000 dollars of your time...
Old 11-29-2006, 04:49 PM
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Pull the wires from the factory harness.
Have someone do it that has alot of experience with it.
Im fixing a car that someone tried to do it them self...Not fun at all...Its costing them way more then its worth to lose 5lbs.

You can pay me to fix it if you get it wrong..Im cheap.
Old 11-29-2006, 05:07 PM
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sam, how much you charge me to come to my shop and pull out all the non-nessecary wires on my car?
Old 11-29-2006, 07:08 PM
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Originally Posted by skipperbisket
sam, how much you charge me to come to my shop and pull out all the non-nessecary wires on my car?
I dont like you Matt so it would be alot.
Old 11-29-2006, 09:36 PM
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i don't like you either, but i like wiring even less.
Old 11-29-2006, 10:21 PM
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Originally Posted by skipperbisket
i don't like you either, but i like wiring even less.
Well good....I like money and wiring more then you.
Old 11-29-2006, 10:39 PM
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sweet, comon ground, i think we can make this work
Old 11-29-2006, 11:20 PM
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It's a huge pain. I took out 25 pounds of wire between under the dash and under the hood. I kept the power windows, all the light functions and the horn. After looking at it, im going to redo it all in new wire. I'm a perfectionist though when it comes to the look of wiring. It's all hid behind the dash though. oh well...lol.

my thoughts on painless:
They make good products other then there switch panels. the plastic rockers are kinda cheap and pop out of the box. Im building a dragster for a guy right now and it has the slim dragster switch panel and its doing the same thing. The rest of there stuff I've never had a problem with though.



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