Gas Pedal Delay

6spd · 05-21-2011, 07:43 PM

Quote:

Originally Posted by DIGItonium

No there is no need to step on it. It's just casual driving. All of my tests are done while the car is rolling, and it does not involve aggressive driving. If you watch the Youtube video posted, then you can see it's more than just lag. I'll do some more testing sometime once I get the headlights back on.

im gonna do some tests too. ive got time off from work coming up, so maybe ill bring our scanner home and make some observations.

L8N8 · 05-28-2011, 12:18 PM

Found a gun metallic NISMO and will be trading in for it this weekend. I'll be back on this thread if I encounter the same issue with that model. Good luck guys.

DIGItonium · 05-28-2011, 08:50 PM

Quote:

Originally Posted by L8N8

Found a gun metallic NISMO and will be trading in for it this weekend. I'll be back on this thread if I encounter the same issue with that model. Good luck guys.

Oh snaps! Congrats! I've put in too much work in my car to trade up, so I'm quite content hehe.

I've not dealt with anything major, but I notice I can barely keep up with an Accord sedan O_o... well not without letting the exhaust roar making it sound like I'm trying really hard.

KingZee · 05-28-2011, 10:15 PM

Quote:

Originally Posted by DIGItonium

Oh snaps! Congrats! I've put in too much work in my car to trade up, so I'm quite content hehe.

I've not dealt with anything major, but I notice I can barely keep up with an Accord sedan O_o... well not without letting the exhaust roar making it sound like I'm trying really hard.

Wtf kinda accord sedans are you trying to keep up with? Turboed ones? Lol

m4a1mustang · 05-31-2011, 08:55 AM

TBH I'm not sure. If I was doing something that really required VDC to kick in quite a bit I was usually not concerned with looking down at the cluster. And it's been months since I've had the car so little details like the VDC light are very much a blur to me now.

6spd · 05-31-2011, 10:40 AM

i have vdc kick in often without the light coming on.

Davey · 05-31-2011, 11:33 AM

Quote:

Originally Posted by 6spd

i have vdc kick in often without the light coming on.

OK, cool. Thanks!

jloomis13 · 08-15-2011, 09:31 AM

I have a stock 09 touring sport and have been experiencing this EXACT issue for about a month now. This is normal day to day driving, have never raced the car and only JUST turned over 13k miles. Everything you guys say describes what I feel exactly. I've gone to one dealership that didn't do anything. Will go to the dealership that changed out my ECU on Friday.

Has anyone had any luck with finding out what is going on? It was so bad last night I couldn't even get the car to go up my driveway....granted, its a little steep, but it's a 370 for ?#$^@ sake!!!

IcedZ · 08-16-2011, 07:56 AM

Quote:

Originally Posted by jloomis13

I have a stock 09 touring sport and have been experiencing this EXACT issue for about a month now. This is normal day to day driving, have never raced the car and only JUST turned over 13k miles. Everything you guys say describes what I feel exactly. I've gone to one dealership that didn't do anything. Will go to the dealership that changed out my ECU on Friday.

Has anyone had any luck with finding out what is going on? It was so bad last night I couldn't even get the car to go up my driveway....granted, its a little steep, but it's a 370 for ?#$^@ sake!!!

That's why I traded it in.. I stalled on a steep driveway and hit the guy behind me. Nissan was NOT helpful. @$$holes.

DIGItonium · 08-16-2011, 05:43 PM

Summers are always bad. Typically the exhaust would drone very loud, and the car barely has the power to move when I give it more throttle. However, something changed since the accident in March. The shop replaced a broken intake box, and that's all they touched in the engine bay. This summer is much hotter than the last, but I have not encountered the throttle lag as much since the accident.

All I've done different so far is open up the fang vents. I can drive all over the place in 90F temps with the A/C running, and I hardly encounter a situation where the car falls flat on its face while making a left turn or running across the street. Amazingly the car has been pretty pleasant to drive.

What's interesting is that the oil temps hardly touch 220F as well. Even if it does, it literally cools down while sitting at the traffic light on a hot summer day. That's weird because I don't remember the oil temps doing that.

Cheap mod... open up the fang vents. [shrugs]

m4a1mustang · 08-16-2011, 05:57 PM

FWIW I ran with open fang vents and it didn't do jack for my problem.

DIGItonium · 08-17-2011, 12:18 AM

Quote:

Originally Posted by m4a1mustang

FWIW I ran with open fang vents and it didn't do jack for my problem.

Ha! So it was definitely not related, but I guess it's safe to assume 220F is when power starts cutting. Yet, I felt the lag past 190F. I will test low end response and heatsoak after getting the car back.

IcedZ · 08-17-2011, 08:09 AM

Quote:

Originally Posted by DIGItonium

Ha! So it was definitely not related, but I guess it's safe to assume 220F is when power starts cutting. Yet, I felt the lag past 190F. I will test low end response and heatsoak after getting the car back.

I felt the lag as low as 180 - 190 oil temps. Don't think it was oil.

m4a1mustang · 08-17-2011, 09:14 AM

Quote:

Originally Posted by DIGItonium

Ha! So it was definitely not related, but I guess it's safe to assume 220F is when power starts cutting. Yet, I felt the lag past 190F. I will test low end response and heatsoak after getting the car back.

Quote:

Originally Posted by IcedZ

I felt the lag as low as 180 - 190 oil temps. Don't think it was oil.

Indeed. Regardless of oil temps I always had the lag/no power below ~4k issue.

Power in general was greatly reduced with oil temps running in excess of 220*F. On a hot summer day driving the Z almost felt like driving a Civic... it was just dog slow.

I believe they are two seperate issues. One related to ECU/VVEL controls and the other a byproduct of excessive heatsoak.

In comparison, my Mustang barely breaks a sweat when it's 105*F out and I have the A/C blasting. The two cars are like polar opposites when it comes to temperature sensitivity.

L8N8 · 08-18-2011, 08:32 PM

If it helps, since I've switched to the Nismo, I've noticed a very small lag in high temps with it as well but it does exactly what Digi described above. It cools down very quickly. I've done no mods to the car other than audio. I do plan on CAIs soon so I'll post if the small delay I notice decreases any further.

05-31-2011, 08:55 AM	#5 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	TBH I'm not sure. If I was doing something that really required VDC to kick in quite a bit I was usually not concerned with looking down at the cluster. And it's been months since I've had the car so little details like the VDC light are very much a blur to me now. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

05-31-2011, 10:40 AM	#6 (permalink)
6spd A True Z Fanatic Join Date: Aug 2009 Location: South Florida Posts: 3,001 Drives: Q50RS Rep Power: 25	i have vdc kick in often without the light coming on. __________________ -Jay- jonathanjamesphotographer.com

08-16-2011, 05:43 PM	#10 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	Summers are always bad. Typically the exhaust would drone very loud, and the car barely has the power to move when I give it more throttle. However, something changed since the accident in March. The shop replaced a broken intake box, and that's all they touched in the engine bay. This summer is much hotter than the last, but I have not encountered the throttle lag as much since the accident. All I've done different so far is open up the fang vents. I can drive all over the place in 90F temps with the A/C running, and I hardly encounter a situation where the car falls flat on its face while making a left turn or running across the street. Amazingly the car has been pretty pleasant to drive. What's interesting is that the oil temps hardly touch 220F as well. Even if it does, it literally cools down while sitting at the traffic light on a hot summer day. That's weird because I don't remember the oil temps doing that. Cheap mod... open up the fang vents. [shrugs] __________________

08-16-2011, 05:57 PM	#11 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	FWIW I ran with open fang vents and it didn't do jack for my problem. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

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05-28-2011, 12:18 PM	#2 (permalink)
L8N8 Base Member Join Date: Feb 2010 Location: VA Posts: 36 Drives: fast, takes chances Rep Power: 16	Found a gun metallic NISMO and will be trading in for it this weekend. I'll be back on this thread if I encounter the same issue with that model. Good luck guys.

08-15-2011, 09:31 AM	#8 (permalink)
jloomis13 Base Member Join Date: May 2010 Location: Raleigh, NC Posts: 18 Drives: 16 Silver Nismo Tech Rep Power: 15	I have a stock 09 touring sport and have been experiencing this EXACT issue for about a month now. This is normal day to day driving, have never raced the car and only JUST turned over 13k miles. Everything you guys say describes what I feel exactly. I've gone to one dealership that didn't do anything. Will go to the dealership that changed out my ECU on Friday. Has anyone had any luck with finding out what is going on? It was so bad last night I couldn't even get the car to go up my driveway....granted, its a little steep, but it's a 370 for ?#$^@ sake!!!

08-18-2011, 08:32 PM	#15 (permalink)
L8N8 Base Member Join Date: Feb 2010 Location: VA Posts: 36 Drives: fast, takes chances Rep Power: 16	If it helps, since I've switched to the Nismo, I've noticed a very small lag in high temps with it as well but it does exactly what Digi described above. It cools down very quickly. I've done no mods to the car other than audio. I do plan on CAIs soon so I'll post if the small delay I notice decreases any further.