I don't think there is wire for Throttle in the HR motor. It is all computerized. If there is a wire, i have not yet found the wire under the engine hood.

 

All 6MT's have that "issue" , all MT's will give that little kick, its caused by the slack in the driveshaft....when its decelerating, it will slack

 

timothyalee - I can't send you a response PM about this thread...just wanted to make sure you don't think I'm ignoring you. Said that you had it turned off so you can't receive though...pm me when you get it straight!

 

Dealers are such liars. When I was shopping for my G35 I would talk about how I don't want an 07 because of the tip in issue with the car and not one salesman would admit to knowing anything about it or feeling it. All they would say is wow I never noticed any harsh acceleration even though they went on numerous test drives a day.

Anyway Im glad this tsb is helping the problem with people that dont like the harsh tip in. Sorry just had to vent.

 

Review the worksheet they gave you when you collected your car. If it doesn't state that the TSB # was actually done, I would send them a written message (fax/e-mail) requesting them to confirm, in writing, that it had been done.

You can tell immediately if the flash has been done...it IS different..!

It would be very courageous/stupid of them to give you such a written confirmation if they had not done the work...back them into a corner and be persistent, if you intend to succeed.

 

Just had the reflash done along w/ keyfob replacement and another attempt at the sunroof finisher "fix".
Dropped off Sat AM and the Service dept is only open till 1pm. This got a bit hairy as the Tech said the computer locked-up midway thru the keyfob programming (we live 230 miles away and HAD to leave Sun AM), and it was already 12:30, luckily they got it handled just in time and we were able to drive off w/ our car. The CC reflash does indeed seem to be an improvement, although not as dramatic as I thought it would be after reading the replies on this thread. It's easier to get off idle but it still requires a lighter foot to avoid sloshing the starbucks. The CC "correction" when going down hill has smoothed quite a bit and IMO this is more noticeable than the throttle tip-in improvement.

I find it was worthwhile to have this done, but I guess I'm in the minority that found the intial tip-in not to be too hard to deal with. Actually I got to the point where I kind of liked it, it was like the car was telling me "Yep, I'm a bad a$$, let's roll! "

 

Just got back from our drive to the dealer (and to spend time w/ family), went over a couple mountain passes w/ Cruise set at 70 and it's SOOO much better, no over modulation or jerkiness going downhill. It over-runs the set speed a bit more than prior to the reflash, but it's no biggie. I still don't feel much change in the tip-in, but it's just fine with me

 

I took our 07 G35S AT with ICC into the dealer today. Unsurprisingly, they had no idea about this TSB, but I proved them with the number (thanks to this forum). Although my VIN is within the range, they said my ECB is not and cannot accept the new program.

I am seriously disappointed and wish I had waited for the 2008. This throttle lag-then-lurch is incredibly irritating. My other cars are a 120kmile Pathfinder, which doesn't do this, and an 03 S2000, which has the best throttle I've ever experienced.

Coupled with the slush-o-matic trans that the wife wanted, I'm beginning to really dislike the car.

 

I am used to it now, no biggie. It is just sensitive. It is pretty nice once you understand it. I feel I have much better control over the car. Very precise

 

It isn't the sensitivity part, but the fact that it bogs, then lurches. Sensitive is good (like my S2K), but bog-slush-lurch is bad. The bog is probably the most irritating part.

Not being able to fix the problem is worse. Has anyone else had this problem, where their car is affected, but they can't fix it?

Perhaps in a year or so, the aftermarket will have hacked the ECB and I'll be able to tune the parameters myself.

 

Luckily I don't have the bog problem you talk about, if you're that dissatisfied I'd go back there and demand that it be done with threats of contacting Infinity customer service head office if they don't comply. You could also try a different dealer. The reflash only takes a short time, so for them to make a customer dissatisfied doesn't make sense for them in the long term. I'd express my extreme displeasure and state that you'd like to do businness w/ them in the future but you're now having doubts.

 

I was unaware of a "bog" mine just jumps out from under me from time to time if I am careless with the throttle. yea a bog would really make me mad.

 

I really didn't notice the bog at first. It happens just for a half second before the power comes on and makes the surge feel much more powerful. So half of what feels like an aggressive throttle is actually the slight bog before the power comes on.

It is worsened by having an auto trans, because the torque converter spools up a bit. With a manual's direct connection, it would probably be less of a problem.

This is also why it is less apparent when you mash the throttle: the problem happens for a shorter time, and gets drowned by the fury.

Anyway, it is irritating, mainly because they can't fix it, and it is only a software patch.

 

Go to a different dealership. The one you're working with is stupid.

Why wouldn't your computer be able to accept an update? User error.

There have been people that "had difficulty" getting the update. But it's mostly with dealers that haven't done it before.

 

I took my '07 AT sedan in today for its first oil change and I had them do the CC surge reflash fix (non-ICC) and it definitely fixed the sensitive tip in on my car. First gear is now smooth instead of being a neck snapping glitch on the way to second. All of the shifts seem smoother now also. The tip in was the only thing that bothered me about the car and now I am having a completely satisfying driving experience. I definitely recommend getting this fix done for anyone who does not like the overly sensitive throttle.

Oh...and it did fix the CC as well. I was actually experiencing the surges with the CC but now it is much smoother. As blnewt mentioned the CC does now overcompensate a bit on the set speed but it is no longer herky jerky.