[TSB] G37 7AT shift issues TCM/ECM reprogram
03-13-2011, 04:16 AM
#1
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[TSB] G37 7AT shift issues TCM/ECM reprogram
ITB10-075 was released a few months ago to address these issues:
</SUP>
Edit: Discussion thread: https://www.myg37.com/forums/g37-sed...reprogram.html
I took the images out of the file so it will fit the attachment size limit
Any of these incorrect gear ratio DTCs stored: P0732, P0733, P0734, P0735, P0729, and/or P1734.
and/or
A slight vehicle vibration/shutter with light acceleration at low speeds,
and/or
At times, the engine rpm goes up (about 200 to 250 rpm) during the 3<SUP>rd > 4th up shift, or the 4th > 5th up shift,
and/or
Engine braking feel is more than expected with deceleration,
and/or
The 2nd > 1st down shift is harsher than expected. and/or
A slight vehicle vibration/shutter with light acceleration at low speeds,
and/or
At times, the engine rpm goes up (about 200 to 250 rpm) during the 3<SUP>rd > 4th up shift, or the 4th > 5th up shift,
and/or
Engine braking feel is more than expected with deceleration,
and/or
</SUP>
Edit: Discussion thread: https://www.myg37.com/forums/g37-sed...reprogram.html
I took the images out of the file so it will fit the attachment size limit
Last edited by AKG37; 03-13-2011 at 05:02 PM.
03-13-2011, 05:01 PM
#4
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Thread Starter
I had to compress the PDF because it was too large. I'll find another way to attach it.
Here is the link to the discussion (didn't see this when I posted earlier)
https://www.myg37.com/forums/g37-sed...reprogram.html
Here is the link to the discussion (didn't see this when I posted earlier)
https://www.myg37.com/forums/g37-sed...reprogram.html
01-12-2012, 12:42 AM
#5
Registered Member
Old thread,
i know, but didnt know where else to post. I got this TSB done and the car rides a lot smoother, but it feels as if it lost some of its pep at the same time. Is it just me imagination or has anyone else felt this
i know, but didnt know where else to post. I got this TSB done and the car rides a lot smoother, but it feels as if it lost some of its pep at the same time. Is it just me imagination or has anyone else felt this
03-17-2012, 10:05 AM
#6
I just got back from the Infiniti dealer a few minutes ago. Had this done this morning. The car shifts ALOT smoother. And I haven't lost any "pep". I think what you were feeling was the jerkiness of the shifting before. If anything, getting up to speed is actually faster.
03-17-2012, 03:49 PM
#7
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iTrader: (13)
Eh wont work. Had this done to my wifes sedan a month and a half ago
And it startwd shifting all messed up again a week or so later. I was hoping
When we did this the shuttering would go away but it only lasted a week.
And it startwd shifting all messed up again a week or so later. I was hoping
When we did this the shuttering would go away but it only lasted a week.
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03-26-2012, 04:55 PM
#10
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I noticed this as well after the update. Its also noticeably quieter. Has any one who dyno'd it before gone back and noticed any lost horse power?
04-20-2012, 04:33 PM
#11
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just had this done. Great ride, I love it. Feels like they cut off an anchor I've been dragging around for a few weeks. Maybe my breaks will wear faster, but i'll sacrifice some "pep" for "driveability"
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