She's acting up....

Hi-Step'n370Z · 03-06-2010, 04:16 PM

Is this only happening with the 6 speed manual, or does the 7 speed auto do it too?

speedworks · 03-06-2010, 05:03 PM

Manual is what I have

zilent_jay · 03-07-2010, 06:04 AM

speedworks - I know exactly what you're talking about. Mine did the same thing and it was ANNOYING... if not dangerous... When I downshift and stay off the gas, I expect the car to engine brake... NOT maintain speed and/or accelerate... especially going into a turn aggressively.

My Z is currently at the dealership due to a massive oil consumption issue. Seems I have bigger issues to deal with....

speedworks · 03-07-2010, 09:32 AM

^^ Since you already have the car at the dealership, tell them about this problem too. The more people that bring the car in for this issue, the faster the solution.

ChrisSlicks · 04-23-2010, 10:09 PM

Quote:

Originally Posted by speedworks

Can't answer this question. I did get the impression from the service manager that Nissan engineering kind of already knew of the issue, and that it was related to the ecu program (which I believe). I used to own an SVT Focus when I worked for Ford, I was able to work with the SVT engineers to diagnose an issue with the throttle map (it would surge at constant cruising speeds) - it took them some time then to develop a new map for the ecu. So much electronics in these things, this issue doesn't surprise me. As for the other person above concerned about buying the car - all cars have issues, and my guess is most people won't be putting their cars in this situation that often (unless you drive close to the limit on turns). It bothers me when I feel it, but I now can predict it. I just look forward to the fix - ecu update is my guess.

Any update there speed? My car just started exhibiting this behavior tonight while taking a ramp at speed. Wasn't close to the edge of traction but I was going quicker than average, around 5K in 3rd gear. While holding constant speed I felt the engine surge a couple of times pushing the car a little. Happened earlier in the day as well but at much lower speed, around 2K in 2nd or 3rd. Really don't like the feeling and I haven't experienced it up to this point. Only thing I changed recently was the Berk CBE.

speedworks · 04-27-2010, 11:05 AM

Nothing yet. I was away on vacation for the last week, and before that I called the dealership again, and still no solution (that they have been told). Honestly, until enough people bring these in, and complain about it, it won't be a priority.

"the squeaky wheel gets the grease"

I was actually hoping you didn't feel this issue, so we could meet up and see if I could make it happen - oh well. I'm so disappointed with this issue, that it makes me want to sell it, I can duplicate it on almost every on/off ramp (assuming no-one is in front of me).

ChrisSlicks · 04-27-2010, 11:40 AM

Quote:

Originally Posted by speedworks

Nothing yet. I was away on vacation for the last week, and before that I called the dealership again, and still no solution (that they have been told). Honestly, until enough people bring these in, and complain about it, it won't be a priority.

"the squeaky wheel gets the grease"

I was actually hoping you didn't fee this issue, so we could meet up and see if I could make it happen - oh well. I'm so disappointed with this issue, that it makes me want to sell it, I can duplicate it on almost every on/off ramp (assuming no-one is in front of me).

I've only had it twice and haven't been able to reproduce it at will. I am going to report it to the dealer anyway even though they won't be able to do anything.

speedworks · 04-27-2010, 02:33 PM

Hey, heading to NHMS this weekend for my first race, if you are interested.

ChrisSlicks · 04-27-2010, 02:52 PM

Quote:

Originally Posted by speedworks

Hey, heading to NHMS this weekend for my first race, if you are interested.

Is that the SCCA event? Sounds like fun, unfortunately I already have an auto-x event that day.

speedworks · 04-27-2010, 05:38 PM

Yep, first SCCA race of the year - where's the solo?

ChrisSlicks · 04-27-2010, 06:20 PM

Ayer, MA at the old Fort Devens army air strip. SCCA had their solo event there last Sunday. This week it's one of the smaller club's turns, which is my preference as it means less cars, more seat time and a longer course.

Auto-X event Northern MA - May 2nd

Vegitto-kun · 04-27-2010, 06:53 PM

my 7AT only does the pulling bit when I go to second gear

all the others seem to engine brake just fine

ChrisSlicks · 04-27-2010, 07:49 PM

Quote:

Originally Posted by Vegitto-kun

my 7AT only does the pulling bit when I go to second gear

all the others seem to engine brake just fine

I noticed it again this afternoon in 3rd gear on an exit ramp. I think it is related to the stock tune not liking after market exhaust parts.

speedworks · 04-27-2010, 08:02 PM

I don't think it is related to exhaust parts - mine did it before any aftermarket parts (I only have an FI exhaust). What the exhaust did do though, was make it easier to hear it when it happens.

ChrisSlicks · 04-27-2010, 08:12 PM

Could just be coincidence then but mine only starting doing it a couple of weeks after installing the Berk CBE. Do you think any of the 3rd party maps would help or is it something native to the ECU behavior?

03-06-2010, 04:16 PM	#46 (permalink)
Hi-Step'n370Z Enthusiast Member Join Date: Dec 2009 Location: new york Posts: 425 Drives: '10ZR S/B AT Tour NV Rep Power: 277	she's acting up Is this only happening with the 6 speed manual, or does the 7 speed auto do it too?

04-27-2010, 11:05 AM	#51 (permalink)
speedworks Track Member Join Date: Jan 2009 Location: Boston, MA Posts: 550 Drives: PW purchased 01/09 Rep Power: 17	Nothing yet. I was away on vacation for the last week, and before that I called the dealership again, and still no solution (that they have been told). Honestly, until enough people bring these in, and complain about it, it won't be a priority. "the squeaky wheel gets the grease" I was actually hoping you didn't feel this issue, so we could meet up and see if I could make it happen - oh well. I'm so disappointed with this issue, that it makes me want to sell it, I can duplicate it on almost every on/off ramp (assuming no-one is in front of me). Last edited by speedworks; 04-27-2010 at 02:31 PM.

04-27-2010, 06:20 PM	#56 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	Ayer, MA at the old Fort Devens army air strip. SCCA had their solo event there last Sunday. This week it's one of the smaller club's turns, which is my preference as it means less cars, more seat time and a longer course. Auto-X event Northern MA - May 2nd __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

04-27-2010, 08:12 PM	#60 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	Could just be coincidence then but mine only starting doing it a couple of weeks after installing the Berk CBE. Do you think any of the 3rd party maps would help or is it something native to the ECU behavior? __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

03-06-2010, 05:03 PM	#47 (permalink)
speedworks Track Member Join Date: Jan 2009 Location: Boston, MA Posts: 550 Drives: PW purchased 01/09 Rep Power: 17	Manual is what I have

03-07-2010, 06:04 AM	#48 (permalink)
zilent_jay Base Member Join Date: May 2009 Location: OKC Posts: 96 Drives: 2009 MB Base Sport Rep Power: 16	speedworks - I know exactly what you're talking about. Mine did the same thing and it was ANNOYING... if not dangerous... When I downshift and stay off the gas, I expect the car to engine brake... NOT maintain speed and/or accelerate... especially going into a turn aggressively. My Z is currently at the dealership due to a massive oil consumption issue. Seems I have bigger issues to deal with....

03-07-2010, 09:32 AM	#49 (permalink)
speedworks Track Member Join Date: Jan 2009 Location: Boston, MA Posts: 550 Drives: PW purchased 01/09 Rep Power: 17	^^ Since you already have the car at the dealership, tell them about this problem too. The more people that bring the car in for this issue, the faster the solution.

04-27-2010, 02:33 PM	#53 (permalink)
speedworks Track Member Join Date: Jan 2009 Location: Boston, MA Posts: 550 Drives: PW purchased 01/09 Rep Power: 17	Hey, heading to NHMS this weekend for my first race, if you are interested.

04-27-2010, 05:38 PM	#55 (permalink)
speedworks Track Member Join Date: Jan 2009 Location: Boston, MA Posts: 550 Drives: PW purchased 01/09 Rep Power: 17	Yep, first SCCA race of the year - where's the solo?

04-27-2010, 06:53 PM	#57 (permalink)
Vegitto-kun A True Z Fanatic Join Date: Feb 2010 Location: USA Posts: 2,011 Drives: 09 370Z Rep Power: 262	my 7AT only does the pulling bit when I go to second gear all the others seem to engine brake just fine

04-27-2010, 08:02 PM	#59 (permalink)
speedworks Track Member Join Date: Jan 2009 Location: Boston, MA Posts: 550 Drives: PW purchased 01/09 Rep Power: 17	I don't think it is related to exhaust parts - mine did it before any aftermarket parts (I only have an FI exhaust). What the exhaust did do though, was make it easier to hear it when it happens.