G37 7speed transmission reprogram
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Joined: Feb 2010
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From: Dallas, TX
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Joined: Jun 2010
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From: New York Metro Area
My personal experience is that the feeling of a transmission lag has been reduced with the reprogram. There is still a delay in acceleration, but nothing worse than before. What I notice is that the trans selects a gear faster than it did before.
I experienced something different with the transmission yesterday. I was driving home from work in DS mode and approaching a highway on ramp and accelerated hard into the turn. The trans seemed to realize I wanted to drive aggressive based on my previous throttle inputs and held what seemed to be 4th gear through the corner. I tried letting off the throttle to force it to shift and it still held the same gear at around 4000rpm. Then I punched it and there was instant power no lag and it continued to rev until it changed gears. I was impressed because it never did that before and it felt like how I used to shift in my previous manual car.
I haven't felt the need to shift manually since the cars been shifting much better than before, but I will try.
I experienced something different with the transmission yesterday. I was driving home from work in DS mode and approaching a highway on ramp and accelerated hard into the turn. The trans seemed to realize I wanted to drive aggressive based on my previous throttle inputs and held what seemed to be 4th gear through the corner. I tried letting off the throttle to force it to shift and it still held the same gear at around 4000rpm. Then I punched it and there was instant power no lag and it continued to rev until it changed gears. I was impressed because it never did that before and it felt like how I used to shift in my previous manual car.
I haven't felt the need to shift manually since the cars been shifting much better than before, but I will try.
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Joined: Oct 2010
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From: NJ
Almatti: That's good to hear!! I have found that driving her more aggressively has led to better shifts and more responsive acceleration and deceleration. Also found that adding in some aggressive highway miles also helps. The problem is how do you drive aggressive and stay within the legal limit...especially for those that live in the city.
can anyone confirm if the 2011 comes with the reflash? I ask since the TSB applies to 2010 (2009?) and the 2011 G rental I had felt a lot better. Maybe it was driven like it was stolen, but the car only had 300 miles when I rented it. Didn't even have plates yet.
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On an unrelated note...how long do you guys warm up the car? Do you keep it under 4 rpms for the first couple of miles before you step on it? Thank you.
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From: NJ
I took my 2011 Journey sedan for a reflash and they told me there is none for this car, but they installed the one they had anyway because I insisted that this behavior was unacceptable. They told me that even though this reflash didn't list my car, it is still OK to install it. They also reset the ECU. Feels much better... and I started driving it hard which also helped.
On an unrelated note...how long do you guys warm up the car? Do you keep it under 4 rpms for the first couple of miles before you step on it? Thank you.
On an unrelated note...how long do you guys warm up the car? Do you keep it under 4 rpms for the first couple of miles before you step on it? Thank you.
My car is garage kept, but I wait till the chattering in the engine stops after 30 secs before pulling out of the garage, then I wait about another 30 secs before I drive. As I accelerate onto the main road, thats usually when I would get the flaring rpm sometimes...if I'm understanding the issue correctly.
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From: Toronto, Ontario
Max, Riley and Chris11, not to be too facetious, but this thread is really abut the 7 AT Reprogramming - Reflash and results and performance of this "wonderful" 7 speed Auto Tranny.....I think the discussion of engine breaking and using the tranny downsgifts should go to another Thread for that discussion.. I only say that b/c hoepfully Infiniti will get the message as the members who cite the complaints about the 7 AT here are read by the Inifiniti Clan of engineers. Even though the reflash has made the performance a little better, I still remian disgusted with the lack of the 07 G performance levels.....
Lately, if tried to Punch the Throttle WOT on the highway, which I have not been able to do, with this icy weather here in the North east, but noticed for the first time, that when I do Punch WOT - she hesitates slightly, and only hit about 5000 to 5500 RPMS??? That must be the Restrictions/Governor Infiniti has installed into the ECU ??
Lately, if tried to Punch the Throttle WOT on the highway, which I have not been able to do, with this icy weather here in the North east, but noticed for the first time, that when I do Punch WOT - she hesitates slightly, and only hit about 5000 to 5500 RPMS??? That must be the Restrictions/Governor Infiniti has installed into the ECU ??
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Joined: Feb 2011
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From: Portland, OR
Disagree. The ONLY reason I am not getting the flash done on my car, because I have complained about the overly-sensitive, non-linear throttle since Day 1 that is now resolved and happily fixes some of the tranny jumpiness, is due to the REMOVAL of the engine braking. I like it in D and DS just the way it is. It is designed to simulate a manual transmission and basically means the car is always in the right gear at the right time for either acceleration or engine braking or just toddling along. All controlled with a tiny flex of the right foot...not back and forth from one peddle to another. It is relevant to this topic.
But what I've got going right now is engine braking + not ever being in the right gear. Whenever I punch it while coasting along with engine braking, it downshifts for half a second and I fly forward in my seat, then it goes back to the "right" gear, and off I go.
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From: New York Metro Area
Marc: How did you Resolve It... if you didn't get the Reflash Done? I still get engine braking in D mode under certain driving circumstances and definetley more engine braking in DS mode as it is designed to do both before and after the Reflash of the ECU/TCM.
Disagree. The ONLY reason I am not getting the flash done on my car, because I have complained about the overly-sensitive, non-linear throttle since Day 1 that is now resolved and happily fixes some of the tranny jumpiness, is due to the REMOVAL of the engine braking. I like it in D and DS just the way it is. It is designed to simulate a manual transmission and basically means the car is always in the right gear at the right time for either acceleration or engine braking or just toddling along. All controlled with a tiny flex of the right foot...not back and forth from one peddle to another. It is relevant to this topic.
My personal experience is that the feeling of a transmission lag has been reduced with the reprogram. There is still a delay in acceleration, but nothing worse than before. What I notice is that the trans selects a gear faster than it did before.
I experienced something different with the transmission yesterday. I was driving home from work in DS mode and approaching a highway on ramp and accelerated hard into the turn. The trans seemed to realize I wanted to drive aggressive based on my previous throttle inputs and held what seemed to be 4th gear through the corner. I tried letting off the throttle to force it to shift and it still held the same gear at around 4000rpm. Then I punched it and there was instant power no lag and it continued to rev until it changed gears. I was impressed because it never did that before and it felt like how I used to shift in my previous manual car.
I haven't felt the need to shift manually since the cars been shifting much better than before, but I will try.
I experienced something different with the transmission yesterday. I was driving home from work in DS mode and approaching a highway on ramp and accelerated hard into the turn. The trans seemed to realize I wanted to drive aggressive based on my previous throttle inputs and held what seemed to be 4th gear through the corner. I tried letting off the throttle to force it to shift and it still held the same gear at around 4000rpm. Then I punched it and there was instant power no lag and it continued to rev until it changed gears. I was impressed because it never did that before and it felt like how I used to shift in my previous manual car.
I haven't felt the need to shift manually since the cars been shifting much better than before, but I will try.
Thanks for the reply. Going to roll the dice and get this reflash (G37xs 2009). Have an appointment Thursday. Will report back.
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From: Portland, OR
Went to dealership today for the reflash (45 minute drive, really wish they could've told me over the phone) and they claimed it wasn't compatible with my 2011 G37x and didn't apply. They also said since my car is sub 1200-1500 miles its hard to say whether or not my issues are legitimate or not.
Honestly, that's fair. I've started ignoring "break-in" and driving it like I normally would (for better or worse). And it actually seems to be getting better...I'll give it another week and see. I might just jump the gun get HyperTech it up sans the reflash.
Honestly, that's fair. I've started ignoring "break-in" and driving it like I normally would (for better or worse). And it actually seems to be getting better...I'll give it another week and see. I might just jump the gun get HyperTech it up sans the reflash.
