Tested my VDC today on my 2006 M45 Sport and I really don't like the results.

[Indy Golfer]

I went to a private road today and did an actual test on the VDC system that I don't think works properly. I went from a dead stop with it "on" and with it "off", the car was left in D during all 6 runs.

When it is "on" and I punch it from a dead stop, the wheels spin for a split second then the VDC takes over and bogs down the motor. Seems to work the way it is supposed to.

When it is "off" and I punch it from a dead stop, the motor bogs down and is very hesitant when it takes off until it hits about 4500 rpm. It is strange the wheels don't even try to turnover in this scenario, not once.

I did each scenario 3 times with the same results. How does your car respond in each scenario?

I want to take it to my Infiniti dealership, but I am unsure on how to approach them without sounding like I want to beat the car at every light. I test drove another 2006 M45 Sport before I bought mine and it took off A LOT harder than this car does. I just want the car to run the way I think it should.

Any ideas how I should approach the dealership about this issue?

Thanks

[fiveliterbeater]

you know, i've tried the same thing and as strange as it may sound, my M does the same thing and my motor only has 9k miles on it. if the VDC is "on", it will launch hard enough to break the wheels loose and then bog for a sec and then keep going. with it "off", it almost seems as it's "hesitant" to transfer all the powers to the wheels at first, and then it unleashes all the power. i think i'm going to try to put it in manual mode and see if the same thing happens.

[Indy Golfer]

Keep me posted.

I am really unsure how to bring this to the dealer to get it "fixed". I really don't want to pull a fuse or something to make the car run the way it should. If I would have known this, I probably would have bought the M35 instead of the M45. Why put a V8 in a car if you are going to restrict its performance.

[striz923]

i thought I read about this in the older models. I would just tell them what is going on, and kind of act embarrased because THEIR V8 couldn't do what a friends could do.

[New2Import]

Thats not good. Ive seen some videos on youtube with some Ms lighting the tires on fire so I thought thats how they done it. I havent tested mine yet too see but this is very disappointing. What about removing a fuse or something? The factory really held these cars potential back dramatically. We need to find some custom tuners out there to get rid of all the little bugs. This and the Grade logic would be the first on my list. Ive owned GM models with traction control systems and when you turned them off thats when the fun began.

[ken in az]

Quick way to turn off traction control - look up under your drivers side dash at your brake pedal bracket. There are 2 connectors up there. One is Tan and the other is white I beleive and has 4 wires coming out of it. Disconnect the 4 wire plug and have at it! You can now do a burnout for as long as you want!!!

this is called the burnout mod and alot of the Titan guys do this by adding a switch to control it so they can turn it on and off at a whim. I've done this and it works!

[Indy Golfer]

When you do this mod, does it change the cars all around (start, roll, merging on the highway, etc.) performance? Does it feel quicker overall, or just from the start?

[New2Import]

I would like to do a switch. Got link to doing a switch?

[M4T5]

Is this 2006 M45 issues only? I think a guy with a 2008 model was complaining about it too.Mine doesn't do that. When I turn it off, I can only see that it is 5%-10% active, meaning I've only seen it interfere upon excessively long tire roasts.Mine will roast the tires from a dead stop when I switch off the VDC. In my opinion, if a manufacturer gives the user an option to turn it off, then it should be "OFF". No interference at all. Sorry to hear about this issue all of you guys are having.By the way, when switching the VDC off while in manual mode, it will not interfere nearly much at all compared to just having it in D. At least on my car that is.

J

[imsello]

I feel sorry for u guys. I roasted a mustang gt the other day and when he got behind me at a light, i switched the vdc off and left him in a cloud of smoke. so much fun with the vdc off in my car doesnt seem to me like it is working at all. cuz if im turning and then punch it I feel like I almost can pull off a 360 degree turn.

[ken in az]

When you do this mod, does it change the cars all around (start, roll, merging on the highway, etc.) performance? Does it feel quicker overall, or just from the start?

I've only unhooked it for a brake stand burnout so I haven't tested it in any other scenario other than that. Keep in mind that this disables your brake lights so if you are driving around no one would know you are hitting the brakes. I only recomend to do this when you want to roast the tires!!!

I would like to do a switch. Got link to doing a switch?

Let me check.....titantalk com or clubtitan org even this site probably has the "burn out" mod linked as a sticky somewhere. The problem is that we have a 4 wire switch where they only have a 2 wire switch. I haven't nailed down wich one needs a switch or if the both need a switch. all it would take is a few minutes of someone's day to test it out. infortunately I can find a free moment to do anything right now. I seriously need to open my own shop just for mine and my families vehicles!

[New2Import]

Well I tested mine yesterday. In D it did smoke them but when its time to shift the tire spin came to a stop and it went into 2nd gear Now in manual mode this car is fun. Maybe some of you guys just need a little driving leason. Ive said this in other threads that this car has so MUCH potential. Its a shame that Nissan held it back like this. We need a tuner bad so we can get some bolt ons like headers and full catback and intake on these cars. I seen a post of a twin only put down 390 hp and around the same tq #s. Thats really a shame and pitiful. My good old SS built up motor put down 435hp natural. Ive seen V6 tuner cars put down over 400hp easy.

[450GT]

Can you show pictures how did you do it please .

[ken in az]

Can you show pictures how did you do it please .

I'm working on another way to turn off the VDC completely by installing a switch inline to the inertia sensor. This way you don't loose your abs function which I feel is a lot safer. G35/350Z guys have been doing it for years we are just behind the times.

[450GT]

Yes i am with you . I think ABS is good but traction control also good in rainy day.But for the mean while can you tell me how to stop the traction control for stop burnout.

[ken in az]

Yes i am with you . I think ABS is good but traction control also good in rainy day.But for the mean while can you tell me how to stop the traction control for stop burnout.

yeah, let me snap a couple of pics for the brake switch. gimme 5min

[ken in az]

Unplug the white plug on top and that does it! Keep in mind you'll loose ABS TCS and VDC and the brake lights so be careful....send some pics of some good smokey's!

[450GT]

I did what you said but it did not work actually the car became so slow that even a truck can go faster than me . The brake light are always on .And alsoit did not do stop burnout.

[ken in az]

I did what you said but it did not work actually the car became so slow that even a truck can go faster than me . The brake light are always on .And alsoit did not do stop burnout.

I don't know why your's didn't work. I've done it many times and it works for me.

Does your's look the same? There are 2 different setups for the braking system that I forgot about when I made that post. One with the pre crash seat bels and those without them.

the way to tell is by looking closely at the pedal assembly. The switch could be different between the 2 setups, I would guess that to be your problem.







For a work around locate your G sensor or it can be called the Yaw sensor. it is in the center console somewhere I haven't checked for it yet, but if you disconnect that then you should be golden. The G35 and 350Z crew install a switch inline with the power wire to that sensor and flip it off when they want to do burnouts. Technically our car should be same with obvious differences. I will tackle this one eventually and post pics, but I don't plan on it anytime soon.

[COinfinitM45]

Ken in AZ, Do you know how to put in a switch for burnouts? Thanks for all your help, you are obviously advanced in M45 knowledge.

[ken in az]

Ken in AZ, Do you know how to put in a switch for burnouts? Thanks for all your help, you are obviously advanced in M45 knowledge.

I'm working on it, I just need to find the yaw sensor and it should be a straight forward process.

[M35 Sport]

Well I have simply pushed the VDC button in my car (including today) and when I floor it the back end of my car is all over the place.

[ken in az]

Well I have simply pushed the VDC button in my car (including today) and when I floor it the back end of my car is all over the place.

Yeah, all of em do that, what we are trying to do is sit stationary and smoke the tires. Only way to do this is 1 foot on the brake and 1 foot on the gas.

Try that and report back - betcha can't smoke'em

[Indy Golfer]

Yeah, all of em do that

I wish that was true

[ken in az]

I wish that was true

Yeah, you are having trouble with power right? Have you owned your car the entire time?

I remember in another thread you said you heard squealing under acceleration from under the hood, could this be a vacuum leak sound? Have you had any major service done to your car which required excessive tinkering under the hood?

I have a hard time believing that it is VDC related that's all.

The good news is that I just got off the phone with uprev and they said the patch is done on my ECU and the only thing thay need to add is the real time tuning feature and it's done! He said it should only take his developer 2hrs or so to add it but they are so busy with other stuff that it'll be tough to fit it in but he'll try. Possibly next week it could be done so we'll see if the WOT restriction can be removed.