Gas Pedal Delay

6spd · 05-15-2011, 08:50 PM

nope, even guys with oil coolers have it.

DIGItonium · 05-16-2011, 12:42 AM

Did lots of searching and found this site... the creator basically has this huge rant against Nissan/Infiniti lol.

Home Page

IcedZ · 05-16-2011, 08:17 AM

Wow. That makes me a little sad. And I bet ALL of that could be fixed by ECU programming.

m4a1mustang · 05-16-2011, 08:22 AM

Quote:

Originally Posted by IcedZ

Wow. That makes me a little sad. And I bet ALL of that could be fixed by ECU programming.

It's sad. But I do agree with Chris, that guy is an idiot.

I do believe all of these problems could be fixed by ECU/VVEL programming but we have to get cars on the dyno with full diagnostics running to figure out exactly what is going on.

flashburn · 05-16-2011, 08:51 AM

Quote:

Originally Posted by m4a1mustang

It's sad. But I do agree with Chris, that guy is an idiot.

I do believe all of these problems could be fixed by ECU/VVEL programming but we have to get cars on the dyno with full diagnostics running to figure out exactly what is going on.

What is this "we" you speak of?!

( Click to show/hide )

m4a1mustang · 05-16-2011, 08:54 AM

Quote:

Originally Posted by flashburn

What is this "we" you speak of?!

( Click to show/hide )

I drive a 5.nism0

ChrisSlicks · 05-16-2011, 08:20 AM

Quote:

Originally Posted by DIGItonium

Did lots of searching and found this site... the creator basically has this huge rant against Nissan/Infiniti lol.

Home Page

Sorry but that guy is an idiot.

DIGItonium · 05-16-2011, 09:41 AM

So far it seems like no one has had the MAF sensors diagnosed or replaced. How about the pre-cat O2 sensors?

6spd · 05-16-2011, 12:56 PM

Quote:

Originally Posted by DIGItonium

So far it seems like no one has had the MAF sensors diagnosed or replaced. How about the pre-cat O2 sensors?

on any other fuel injected car, i'd say no way would any of those cause this type of problem, but seeing as how the vvel system in the new z is very different, it could use these sensors in a different way that could create a problem.

dont forget too that this is nissans first attempt at this type of engine. they still will need time to work out all the kinks.

L8N8 · 05-16-2011, 08:51 PM

on pg 7 of this thread a couple of posters mentioned cleaning the MAF sensor. I believe someone said they cleaned it and the problem seemed to dissipate for awhile but then returned.

IcedZ · 05-16-2011, 10:01 PM

Quote:

Originally Posted by L8N8

on pg 7 of this thread a couple of posters mentioned cleaning the MAF sensor. I believe someone said they cleaned it and the problem seemed to dissipate for awhile but then returned.

I cleaned them, but really it didn't fix anything.

m4a1mustang · 05-16-2011, 10:03 PM

Yep, same here.

2ndChance · 05-17-2011, 12:04 AM

I'm a new owner but also experienced few times this issue with VDC on.. and rarely when off. However not when switched into manual mode.. my car has only 4k miles!

IcedZ · 05-17-2011, 12:09 AM

Quote:

Originally Posted by 2ndChance

I'm a new owner but also experienced few times this issue with VDC on.. and rarely when off. However not when switched into manual mode.. my car has only 4k miles!

Again, then you have a different or watered down problem. VDC does not affect the problem in the extreme cases like DIGI, m4a1, and myself. I dealt with the problem for almost 40k miles until I stalled out on a hill and tapped the guy behind me.

DIGItonium · 05-17-2011, 08:41 AM

Is that embarrassing or what? Stalling out like a newbie who didn't give it enough gas, right? I've stalled 1st and Reverse in front of people on a hot day. A/C running wasn't helping either. It doesn't jerk the car... just dies. It's embarassing.

The only thing I notice about VDC OFF is the slightly improved throttle response (i.e., the ECU doesn't hold back as often). The power cut does feel like VDC kicking in, and as many owners (even G37) describe that slip lights don't come up. Plus, it's not full throttle acceleration.

Once my car is back on the road I may experiment with electronics cooling spray. There are so many variables with this car that may contribute to hesitation under acceleration: MAF, CAS, O2 Sensors, etc. It doesn't make sense since our cars idle fine. I think fuel economy is fine, but I don't know if it's running rich. The roughness seems like lean condition and fuel trimming.

I did some more reading about hanging revs, and I think it's to burn off excess fuel for reduced emissions. There's not much we can do there.

I'm honestly not much of a mechanic and don't know squat about this stuff... I Google all this stuff.

05-15-2011, 08:50 PM	#1 (permalink)
6spd A True Z Fanatic Join Date: Aug 2009 Location: South Florida Posts: 3,001 Drives: Q50RS Rep Power: 25	nope, even guys with oil coolers have it. __________________ -Jay- jonathanjamesphotographer.com

05-16-2011, 12:42 AM	#2 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	Did lots of searching and found this site... the creator basically has this huge rant against Nissan/Infiniti lol. Home Page __________________

05-16-2011, 09:41 AM	#8 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	So far it seems like no one has had the MAF sensors diagnosed or replaced. How about the pre-cat O2 sensors? __________________

05-16-2011, 10:03 PM	#12 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	Yep, same here. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

05-17-2011, 08:41 AM	#15 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	Is that embarrassing or what? Stalling out like a newbie who didn't give it enough gas, right? I've stalled 1st and Reverse in front of people on a hot day. A/C running wasn't helping either. It doesn't jerk the car... just dies. It's embarassing. The only thing I notice about VDC OFF is the slightly improved throttle response (i.e., the ECU doesn't hold back as often). The power cut does feel like VDC kicking in, and as many owners (even G37) describe that slip lights don't come up. Plus, it's not full throttle acceleration. Once my car is back on the road I may experiment with electronics cooling spray. There are so many variables with this car that may contribute to hesitation under acceleration: MAF, CAS, O2 Sensors, etc. It doesn't make sense since our cars idle fine. I think fuel economy is fine, but I don't know if it's running rich. The roughness seems like lean condition and fuel trimming. I did some more reading about hanging revs, and I think it's to burn off excess fuel for reduced emissions. There's not much we can do there. I'm honestly not much of a mechanic and don't know squat about this stuff... I Google all this stuff. __________________

05-16-2011, 08:17 AM	#3 (permalink)
IcedZ Base Member Join Date: Feb 2009 Location: Gainesville, FL Posts: 194 Drives: 09 370 Yellow, 6MT Rep Power: 17	Wow. That makes me a little sad. And I bet ALL of that could be fixed by ECU programming.

05-16-2011, 08:51 PM	#10 (permalink)
L8N8 Base Member Join Date: Feb 2010 Location: VA Posts: 36 Drives: fast, takes chances Rep Power: 16	on pg 7 of this thread a couple of posters mentioned cleaning the MAF sensor. I believe someone said they cleaned it and the problem seemed to dissipate for awhile but then returned.

05-17-2011, 12:04 AM	#13 (permalink)
2ndChance Base Member Join Date: Feb 2011 Location: Panama Posts: 240 Drives: like he stole it Rep Power: 200	I'm a new owner but also experienced few times this issue with VDC on.. and rarely when off. However not when switched into manual mode.. my car has only 4k miles!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
7AT rev delay?	Vegitto-kun	Engine & Drivetrain	16	05-04-2010 05:17 PM
2 things delay in a shift and a sound 7at	jtown82	Engine & Drivetrain	19	04-03-2010 01:30 AM
Headlight delay	Jack370Z	Nissan 370Z General Discussions	7	10-30-2009 03:02 PM
A7 Upshift Delay?	hey32g	Nissan 370Z General Discussions	15	10-12-2009 11:20 AM
Automatic Downshift Delay	drdre8424	Nissan 370Z General Discussions	2	07-25-2009 10:56 PM