InfinitiTech,

How does Infiniti update the TCU? Do they actually access
the unit it'self, or is it updated through a port? The reason I
ask is that I have a Hyperground wire attached to both the
ECU and the TCU units. I am afraid if I have Infiniti update
the code and they see my wires, they will go nuts about
the wires and say "you have now voided your warranty!".
I can always remove those wires if they are going to actually
look at the ECU/TCU

Thanks in advance!

2003 TwBlue 5AT Sedan, sunroof,
Graphite Leather, splashguards, HKS exhaust,
14 wire Grounding kit, 350Z duct, Stillen CAI
Underbody rear diffusers, Drilled alum pedals

 

We access the OBD port underneath the dash and plug in our scanner with the new software in it and reprogram it. The wiring kit does not void any warranty within Infiniti, they may charge you to update the software.

 

Thanks guy! You are the greatest!

Cato

2003 TwBlue 5AT Sedan, sunroof,
Graphite Leather, splashguards, HKS exhaust,
14 wire Grounding kit, 350Z duct, Stillen CAI
Underbody rear diffusers, Drilled alum pedals

 

Great thread!....question does the 2004 (i got my coupe oct 15 2003) 5AT need the re programming for crisper shifts? or if that 2003 only?

Ivory Pearl Coupe/5AT/Aeros/Premium/Nav/Type-N Front Bumper/Z-Tube+Popcharger/V1

 

My resource tech from Infiniti says that when they plug in, they will look at the version you have currently flashed on your TCU. They can upgrade with the newer version if necessary.

He says that Infiniti apparently acknowleges the need for better signal transfer (aka Hyper-Grounding) and for 2005, they are mounting the TCU directly on to the transmission housing.

<font color=blue>[i]GroundingGear™ Equipped </font color=blue>

 

Well the TCM is built into the trans assy. And yes the scanner called the consult will print out a version number of software that you have right now and if you reprogram it, it will give you the new number. Never heard of Infiniti wanting a better ground for their TCM, are you sure your just trying to push your ground wire kits? Infiniti already has the lowest voltage drop on their grounding systems than any other line of vehicles. It is .09 of one volt, which is pretty damn incredible in itself.

 

InfinitiTech,
How much does your dealership charge for this service? I would like to get it done. I called a couple in my area(Peninsula and Frontier) and they won't do this service. They claim it will void warranty.
Pls P.M. me for more info.
Thx.

 

Hey InfinitiTech the reason he pushes them when he does and he wasn't was then IMO, Is that they work. Give all 1000 of us who heard the placebo crud for the last 2 years already a break and get some credible reasoning behind why it won't work once you've seen them in action. Gord send this guy a set and he can cut the dam wires while its on the dyno to see the drop in hp. It's hard to have meaningful discussion with everyone so paranoid gord's gonna come to thier house and take $80 for a grounding kit they are afraid to prove wont work by trying!



2003.5 DP 5AT Sedan (E-thing but Nav)
14.2 @ 97.18
Injen CAI
10 Wire Hyper-Ground
Crawford Plenum (V4)
UR Crank Pulley
Polk ex-3500 Tweeter Upgrade/Shock Sensor/H-Liner Under Hood

 

Wow that is very surprising, it doesnt surprise me though. I used to wrench for Frontier Infiniti and it is the same service manager for both, and the same owner. What are do you live in? I am working up in Concord for Niello Infiniti, but I live down in Campbell.

 

In fact I will give anyone who can prove they do nothing to HP or TQ or transmission smoothness by way of better grounding in a 10 wire kit $500. Prove it doesn't work is the statstically desired way to test that something does so if you got the time I got the money.

2003.5 DP 5AT Sedan (E-thing but Nav)
14.2 @ 97.18
Injen CAI
10 Wire Hyper-Ground
Crawford Plenum (V4)
UR Crank Pulley
Polk ex-3500 Tweeter Upgrade/Shock Sensor/H-Liner Under Hood

 

I would love to see those test results from the dyno, our Infiniti shop has a dyno, and we have tested them. The only improvement I saw on one vehicle that had them was a smoother idle, which would make sense. The MAF needs a superior ground, the weaker the ground the richer it runs. Plus spending 80 to 100 bucks on wires seems like a rip off. I can go down to a local car stereo store and buy some 4 guage wire to ground everything for 1/3 of the price. So back to my point, I have dyno'd the vehicle without the dramatic results you claim. If someone can produce an accurate test result then we can talk. For me, I would rather spend my 100 bucks and something that will make horsepower I can feel at the wheel.

 

$500 for a grounding kit? Are you nuts! A car stereo company can supply the same wiring for 40 bucks....Sounds like someone is talking smack here

 

Try reading it again. You prove it doesn't work and I'll give you the money...with the publicity this will bring I bet you can weasel into a free set...

2003.5 DP 5AT Sedan (E-thing but Nav)
14.2 @ 97.18
Injen CAI
10 Wire Hyper-Ground
Crawford Plenum (V4)
UR Crank Pulley
Polk ex-3500 Tweeter Upgrade/Shock Sensor/H-Liner Under Hood

 

Oh I misunderstood your statement, I thought you said the kits were 500 bucks. Well dude I am not going to bet anything, as i said I have been an Infiniti master tech for 10 years. We have a dyno at our shop, and I have tested it. I dont need to prove anything. If you think it is something great, then so be it. I just disagree. I have done all the testing to prove it to myself. So if someone asks me about them, i will always be honest with my anser

 

I dont want a free set, my local car stereo store can supply with the wiring for a fraction of the cost. IF I even wanted to do it.