View Poll Results: 2007 Sedan Owners: Are you happy with your new ECM update?
TSB ITB07-028a applied, overall/very satisfied (no regrets, car feels better or the same, etc.)
36.84%
TSB ITB07-045 applied, overall/very satisfied (no regrets, car feels better or the same, etc.)
38.60%
Voters: 57. You may not vote on this poll
ECM Update Poll
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Joined: May 2007
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Originally Posted by JS7773
I answered TSB ITB07-028a applied, NOT satified (car feels slower, want old ECM back).
I chose this answer because the car certainly feels slower, but for everyday driving the car is more drivable.
I'm not sure that I want the old ECU back, but I would like some of the characteristics of each. I'm not satisfied, but I don't necessarily regret having the update performed on a daily basis.
I chose this answer because the car certainly feels slower, but for everyday driving the car is more drivable.
I'm not sure that I want the old ECU back, but I would like some of the characteristics of each. I'm not satisfied, but I don't necessarily regret having the update performed on a daily basis.
Originally Posted by adamr001
Your dealer is smoking crack. There's no limitation to AT only on ITB07-28a.
It's limited strictly to VINs. Here's the VIN list:
JNKBV61 E (*) 7M 728124 / 03-Jul-2007 (without Intelligent Cruise Control)
JNKBV61 F (*) 7M 822387 / 03-Jul-2007 (without Intelligent Cruise Control)
JNKBV61 E (*) 7M 728586 / 10-Jul-2007 (with Intelligent Cruise Control)
JNKBV61 F (*) 7M 822720 / 10-Jul-2007 (with Intelligent Cruise Control)
My 6mt was in one of the ranges above and was handled with no complaints by the service department. Assuming your VIN matches one of the aboves, go to the FAQ sticky above and print the TSB and take it to them.
Another option is to call Infiniti Consumer Affairs (see the 800# on the Infiniti web page) and verify that the TSB applies to your vehicle. There's an option off of the 800# for just this purpose. Again, you'll need your VIN.
If the service manager argues, make the call to Infiniti with him present.
It's limited strictly to VINs. Here's the VIN list:
JNKBV61 E (*) 7M 728124 / 03-Jul-2007 (without Intelligent Cruise Control)
JNKBV61 F (*) 7M 822387 / 03-Jul-2007 (without Intelligent Cruise Control)
JNKBV61 E (*) 7M 728586 / 10-Jul-2007 (with Intelligent Cruise Control)
JNKBV61 F (*) 7M 822720 / 10-Jul-2007 (with Intelligent Cruise Control)
My 6mt was in one of the ranges above and was handled with no complaints by the service department. Assuming your VIN matches one of the aboves, go to the FAQ sticky above and print the TSB and take it to them.
Another option is to call Infiniti Consumer Affairs (see the 800# on the Infiniti web page) and verify that the TSB applies to your vehicle. There's an option off of the 800# for just this purpose. Again, you'll need your VIN.
If the service manager argues, make the call to Infiniti with him present.
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Joined: Mar 2006
Posts: 842
Likes: 95
G35x
Originally Posted by NewGMan
You would have loved my last car then, S60R. Had a switch that changed suspension settings and throttle map for Comfort, Sport and Track. Cool feature.
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Joined: Dec 2007
Posts: 136
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From: Austin, TX
Originally Posted by BrianV
Thanks my car fits in the VIN range. THe wording regarding the badging of the car is the problem. However, page 6 lists an MT code that can be reflashed. My larger problem is that my dealer needs to reproduce the problem and their efforts to do so are usually minimal. Also, the dealer isn't near any hills, they'd have to drive 20 miles out to see the problem, I doubt they're going to do that.
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Joined: Dec 2006
Posts: 459
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From: Upstate, NY
I brought my car into the dealer for ITB07-028a. My car's VIN is in the range listed in ITB07-028a. The dealer said that when they tried to do the upgrade, their computer said my car wasn't eligible for the upgrade. Anyone else had this problem? I didn't have a cruise issue, but wanted the ECM for the less jerky feel.
Maybe I'll try ITB07-045. I usually do a good job warming up my car, so this hasn't been an issue. But, would be good to get the updated ECM.
Maybe I'll try ITB07-045. I usually do a good job warming up my car, so this hasn't been an issue. But, would be good to get the updated ECM.
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Joined: May 2007
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Originally Posted by randman
I brought my car into the dealer for ITB07-028a. My car's VIN is in the range listed in ITB07-028a. The dealer said that when they tried to do the upgrade, their computer said my car wasn't eligible for the upgrade. Anyone else had this problem? I didn't have a cruise issue, but wanted the ECM for the less jerky feel.
Maybe I'll try ITB07-045. I usually do a good job warming up my car, so this hasn't been an issue. But, would be good to get the updated ECM.
Maybe I'll try ITB07-045. I usually do a good job warming up my car, so this hasn't been an issue. But, would be good to get the updated ECM.
Thread Starter
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Joined: Dec 2006
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If your VIN is within the range per TSB-028a AND your ECM part number (P/N) is JK60A thru JK-69A, then the ECM update bulletin applies.
Make sure to ask them what your ECM P/N is, and point them to page 6 of both TSBs.
Make sure to ask them what your ECM P/N is, and point them to page 6 of both TSBs.
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Joined: Mar 2006
Posts: 842
Likes: 95
G35x
Originally Posted by NewGMan
I suspect they are trying to avoid the $1,200 for the ICC sensor required for 028a in some cases.
That may be the case. They told me ICC was not needed when my vehicle was updated with 028a. 028a did not address my cold start issue so I went with 045 which completely addressed my issue. I could've gone either way with throttle response but the cold start issue was a daily reminder to me that something did not feel right with the vehicle.
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Joined: Dec 2006
Posts: 459
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From: Upstate, NY
Can someone describe in more detail the symptoms associated with the cold start issue? I warm up my car by waiting for the RPMs to settle down. Would the cold start issue occur if I did this? Or only if I don't wait for the car to warm up?
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Joined: Aug 2007
Posts: 43
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Originally Posted by timn99
OK, since I started this thread I just casted my vote in favor of TSB 045.
Had the ECM updated to Rev. C
My observations are less neck jerking, less aggressive tip-in as other have noted. Accelerator has to be depressed ever so slightly harder to get going, making quick acceleration more controllable. This has somewhat of an effect of a heavier accelerator pedal. All power is still there as needed. Other positives:
- when in DS full manual, no more "banging" into 3rd gear, overall shift points are much smoother
- in DS full manual, less jerking feeling when slowing doing and auto downshifting to a stand still, slowing from 3rd to standstill used to have a slight jerk, now its smooth
Had the ECM updated to Rev. C
My observations are less neck jerking, less aggressive tip-in as other have noted. Accelerator has to be depressed ever so slightly harder to get going, making quick acceleration more controllable. This has somewhat of an effect of a heavier accelerator pedal. All power is still there as needed. Other positives:
- when in DS full manual, no more "banging" into 3rd gear, overall shift points are much smoother
- in DS full manual, less jerking feeling when slowing doing and auto downshifting to a stand still, slowing from 3rd to standstill used to have a slight jerk, now its smooth
My thoughts exactly!!!!!!!
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Joined: Aug 2007
Posts: 43
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Originally Posted by randman
Can someone describe in more detail the symptoms associated with the cold start issue? I warm up my car by waiting for the RPMs to settle down. Would the cold start issue occur if I did this? Or only if I don't wait for the car to warm up?
Cold start herky jerky moves. See the RPMs dip and flick back and forth. Hesitation on acceleration, puttering. Seems like it is running lean, shifting prematurely. Touchy throttle from dead start, neck jerky acceleration. Rolling acceleration RPMs rev to redline prior to gear engaging. DS mode down shifts are abrupt and too drastic. In manual mode it slams into 3rd gear.
ALL THESE WENT AWAY AFTER TSB UPDATE 45.
Last edited by DRob; Feb 12, 2008 at 07:14 PM.
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Joined: Nov 2007
Posts: 243
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From: Westchester Co, NY
JS77773: I originally replied that I was happy to have had the ECU update (028 TSB). But now that I have driven the car more lately, I feel as you do. I Voted in the Poll as you did. The car does "feel" slower and I feel a slight hesitation that some 08 owners have mentioned on the Forums. The car is more driveable in the City traffic (NYC that is) for everyday usage. The 3rd gear shift is better/smoother. In DS (Drive Sport Mode) w/o manually shifting the tranny, I feel the car doesn't feel the same. Hard to describe other than I sense a lack of an upshift, kind of dragging in 3rd gear. That may be the learning logic of the electronics of the engine / tranny though. According to what I've read about the car, the system does "adapt" to driving manners. Since I've been only using the car for short commutes to the train station, those driving habits may be affecting it??? 
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Joined: Nov 2007
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From: Westchester Co, NY
If you have ICC issues, Yes, apply the ECU update. In fact, that will be automatically done to correct the ICC problem. I did NOT have a Cruise Control issue at all, but a hard shifting 3rd gear (AUTO Tranny), particulalry when cold. I think You WILL feel a difference in the car's response though. Drove it home last night and this morning to train station. Pushed her a little harder. Like I said earlier, 3rd gear is shifting smoother, BUT I feel a ever so slight hesitation that I don't think I had Pre-Update of the ECU . It does perform with more control of the Throttle.
Good Luck with your car.
Good Luck with your car.