Jim's Performance

CSR

Active Member
Location
Mapleton
Ok, I need to get a harness for a 5.3 and I need to make sure I'm contacting the correct Jim's Performance. Is his site the one with the American flag background on the home page? I just don't want to send my money to the wrong place or an impersonator and have it disappear. Thanks.
 

spaggyroe

Man Flu Survivor
Location
Lehi
Ok, I need to get a harness for a 5.3 and I need to make sure I'm contacting the correct Jim's Performance. Is his site the one with the American flag background on the home page? I just don't want to send my money to the wrong place or an impersonator and have it disappear. Thanks.

Yup, that's the guy. :)

If you're hesitant, give him a call first. I went with Jim's and my experience couldn't have been better.

FYI, waynehartwig on this board (jeeperman.com) now flashes computers. He has a great price and will reflash your computer for free if you ever want to change it. Just cover the freight.

Good luck with your project.
 
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CSR

Active Member
Location
Mapleton
Thanks. I'll give Jim a call.

I don't know squat about flashing computers or what it does. Are we talking about performance characteristics? Or just things like VAT deletion and so forth?
 
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I Lean

Mbryson's hairdresser
Vendor
Location
Utah
Thanks. I'll give Jim a call.

I don't know squat about flashing computers or what it does. Are we talking about performance characteristics? Or just things like VAT deletion and so forth?

Both. Plus, if he's modifying the harness for you, he can make the changes you need him to. (deleting some O2 sensors, or the tranmission controls, etc)
 

waynehartwig

www.jeeperman.com
Location
Mead, WA
Yup, that's the guy. :)

If you're hesitant, give him a call first. I went with Jim's and my experience couldn't have been better.

FYI, waynehartwig on this board (alljeep.com) now flashes computers. He has a great price and will reflash your computer for free if you ever want to change it. Just cover the freight.

Good luck with your project.

Thanks for the plug! :cool: And now if you want I can do the harness as well. Actually, I still refuse to do wiring, but now I've 'got a guy'. Harness and PCM tune your looking at $400 and shipping - $250 for the harness and $150 for the PCM. You can ship both to me still and I'll deliver the harness. That way you don't have to mess with two shipments/payments.
 

waynehartwig

www.jeeperman.com
Location
Mead, WA
That's a good price for a harness. What does it entail?

Whatever you want... So thinned out and made to stand alone.

He's a GM tech, so he's got all of the diagrams and etc. at his disposal to make it correct.... There is a couple shops in town that buy brand new, salvaged parts and build complete rigs to sell/use. They take them to this guy to make it all work. Most of the time it's just programming, but other times he has to fix wiring issues.

Or like recently, had to fix a Y pipe with a sawzall hole at the flange - guy brought him a truck that wouldn't run right, but didn't know why. No big deal right? But when you think everything is brand new (but all salvaged parts), and it runs like royal dog crap, there is a lot of things that it could be. Nothing on this truck had more than 500 miles on it. 09 Denali that will be sold for $17k. The only downside is it will have a salvage title. Everything still has the original OEM paint, with no repairs.

A local dyno shop installed a Magna Charger on an 02? Silverado (slammed, Lambo doors, 24" wheels, etc..etc..) and they thought they killed it. Couldn't figure it out so they brought it to him on a trailer. He did some basic trouble shooting, but didn't see anything after about an hour working on it. Wife was calling him, so we disbanded. The next day at work he has an epiphiney, calls the shop up and says "I know whats wrong and I'll call after it's fixed". When back home and after 10 minutes had it fixed. No ground from the battery to the chassis. There were grounds on the battery, but some weren't hooked up and some were going places they weren't supposed to. Then the guy had moved the hood light to the fire wall and removed the ground strap there.

Another time I tuned a buggy for a guy, but he couldn't get the peddle to work (DBW). So he drug the buggy down from BC (its a 100 miles trip here ;)) for me to check out. I don't do wiring, but with my scanner I could see the peddle working and there were no codes. After about 30 minutes he figured out the shop that did the wiring harness had two wires in the harness reveresed (not saying the name, but it's mentioned here before - and NOT Speartech!:D ).

The dood is good... Not that it's rocket science, but you gotta have a method, know how it works and some common sense.
 

CSR

Active Member
Location
Mapleton
Wayne, can the guy build a harness for me? I don't have one and don't know where to get one. I also need a pcm.
 

CSR

Active Member
Location
Mapleton
I want a clean fit and look. I would think that a modified OEM harness would have some unnecessary "stuff" left over, and I want to avoid that. But if it can be done cleanly, I'm interested.
 

Caleb

Well-Known Member
Location
Riverton
I want a clean fit and look. I would think that a modified OEM harness would have some unnecessary "stuff" left over, and I want to avoid that. But if it can be done cleanly, I'm interested.
Sure it can be done, but normally by the time you are done with it, you would have been better off starting with a new harness.
 

I Lean

Mbryson's hairdresser
Vendor
Location
Utah
I've had OEM harnesses modified several times--it looks like a factory harness when it's done. The loom is removed, all excess wires/plugs/whatever removed, and re-loomed.

At least that's what Jim does, I'd assume Wayne's guy does the same stuff.....
 

UNSTUCK

But stuck more often.
What about changing locations of plugs and changing the length of the harness? Say I wanted to put the ECU in a trunk or glove box. Or adding additional wires to the harness for an electirc fan circuit, for example.
 

waynehartwig

www.jeeperman.com
Location
Mead, WA
I just dropped him off an 05 Silverado harness to do for a guy and while I was there, I talked to him about a custom harness.

He said no problem that he'll do what ever you want. But it's $250 + connectors or harness if you don't have one.

The 'extra' stuff that you don't use in the OEM harness will be removed. Like the one I just took him, he's going to pull all of the AC, O2 sensors, trans connectors out. This will be a stand alone tune with no pretty much only a computer and injectors. No MAF, no O2's, etc.

But if you don't have a harness for him to modify, we can find you one, it will just be an additional cost is all. Probably $50-100 depending on harness and/or ECM/TCM.
 

Bart

Registered User
Location
Arm Utah
Another happy customer of Jim's Performance. He did great work on my computer and harness. I was blown away when I called and he answered and spent a lot of time on the phone. Great guy, great customer service.

Oh, and that Wayne guy is a great guy also.
 
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