Gas Pedal Delay

Kastley85891 · 03-26-2011, 09:42 AM

Its so ******* pretty

spearfish25 · 05-01-2011, 03:48 PM

At my autoX last week, the car was bogging badly off the line. I had to launch above 3k RPM and then the throttle/power was fine. But anything less, the car would fall flat on its face. Never had that happen before. Ambient temps were in the 60s and my IATs were between 90-140F.

DIGItonium · 05-01-2011, 04:11 PM

Quote:

Originally Posted by spearfish25

At my autoX last week, the car was bogging badly off the line...

That's what I see with everyday driving when it starts losing power off the line. I try to rev it past 3k RPM regardless of how much throttle input, but it has plenty of power down low to get moving when it doesn't exhibit this issue. I see you have an oil cooler, and it's not helping all? I still don't buy into this oil temperature being the reason for the power loss because it happens around 180-200F as well. [shrugs] BTW, is your ECU program stock?

6spd · 05-01-2011, 05:35 PM

the catalyst code means that the change in chemical make up of the exhaust the computer is looking for between the pre cat sensors and the post cat sensors hasnt changed enough. This is usually a cat problem, but sometimes can be a sensor problem. Dealer diagnostics are usually required to get to the exact root of the problem. The 50k laws shouldnt matter between states because it is a federal law, i'd try that route.

You could always trade in for a 5.0 like everyone else seems to be doing!

Kastley85891 · 05-01-2011, 09:58 PM

It happened to me, first time in 9K miles, usual day,usual road, sucked

IcedZ · 05-03-2011, 10:47 AM

Dropped my car off this AM, just got a call. They said that the catalytic converter is bad! WTF?! This actually warrantied for 5 years / 80k miles. Still, a cat shouldn't go bad at 40k miles.

m4a1mustang · 05-03-2011, 10:48 AM

Quote:

Originally Posted by IcedZ

Dropped my car off this AM, just got a call. They said that the catalytic converter is bad! WTF?! This actually warrantied for 5 years / 80k miles. Still, a cat shouldn't go bad at 40k miles.

It shouldn't but sometimes it happens.

IcedZ · 05-03-2011, 11:20 AM

Quote:

Originally Posted by m4a1mustang

It shouldn't but sometimes it happens.

I'm still skeptical. We'll see though.

Kastley85891 · 05-03-2011, 11:30 AM

Quote:

Originally Posted by IcedZ

Dropped my car off this AM, just got a call. They said that the catalytic converter is bad! WTF?! This actually warrantied for 5 years / 80k miles. Still, a cat shouldn't go bad at 40k miles.

Cant see that... wow, I run with TP's and I got it

Like to see the Nissan tech enjoying cat removal

KusoSama · 05-03-2011, 01:38 PM

Quote:

Originally Posted by Kastley85891

It happened to me, first time in 9K miles, usual day,usual road, sucked

Do you use SRM at all or all the time?

I have a feeling that SRM throttle position overrides actual throttle position during a set of time prior to gear engagement.

I believe this behavior is what is causing this lag we all have been complaining about. If we could remove neutral position awareness and allow actual throttle position to override if it's greater than SRM throttle position value, I believe we'd be considerably better off with this issue.

I'd like to see if there is a garage out there that can validate if this action is occurring so that we can provide Nissan with data they can action, if the choose to.

When I don't utilize SRM, I don't receive this lag issue at all.

import111 · 05-03-2011, 08:05 PM

Quote:

Originally Posted by KusoSama

Do you use SRM at all or all the time?

I have a feeling that SRM throttle position overrides actual throttle position during a set of time prior to gear engagement.

I believe this behavior is what is causing this lag we all have been complaining about. If we could remove neutral position awareness and allow actual throttle position to override if it's greater than SRM throttle position value, I believe we'd be considerably better off with this issue.

I'd like to see if there is a garage out there that can validate if this action is occurring so that we can provide Nissan with data they can action, if the choose to.

When I don't utilize SRM, I don't receive this lag issue at all.

I have never once used SRM and I still get the lag. SRM on or off apparently doesn't affect the lag issue.

IcedZ · 05-03-2011, 09:20 PM

Quote:

Originally Posted by kusosama

when i don't utilize srm, i don't receive this lag issue at all.

i do!

Kastley85891 · 05-03-2011, 02:40 PM

Good thinking... I use it all the time - also VDC off

BrandonT · 05-03-2011, 05:57 PM

IcedZ did the "special" tech ever get back to you in March?

Just bought a Z. I don't mind kinks here and there, as long as they are fixable, but if not I have little patience for this sort of thing. Mine hasn't really dogged yet, but I have noticed a jerky acceleration from a stop. Bummer is nothing this side $75k excites me in vehicles besides the Z (not for performance, Mustang GT can match that, more that excited "I want to drive this thing fast" sort of feel).

6spd · 05-03-2011, 08:38 PM

Quote:

Originally Posted by BrandonT

IcedZ did the "special" tech ever get back to you in March?

Just bought a Z. I don't mind kinks here and there, as long as they are fixable, but if not I have little patience for this sort of thing. Mine hasn't really dogged yet, but I have noticed a jerky acceleration from a stop. Bummer is nothing this side $75k excites me in vehicles besides the Z (not for performance, Mustang GT can match that, more that excited "I want to drive this thing fast" sort of feel).

yeah first gear is herky jerky thats for sure...

03-26-2011, 09:42 AM	#1 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 19	Its so ******* pretty __________________ Boosted V8 hunter 2850 lbs and 375WHP

05-01-2011, 03:48 PM	#2 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1858	At my autoX last week, the car was bogging badly off the line. I had to launch above 3k RPM and then the throttle/power was fine. But anything less, the car would fall flat on its face. Never had that happen before. Ambient temps were in the 60s and my IATs were between 90-140F. __________________ 2013 Cadillac V-Wagon, RIP Z

05-01-2011, 05:35 PM	#4 (permalink)
6spd A True Z Fanatic Join Date: Aug 2009 Location: South Florida Posts: 3,001 Drives: Q50RS Rep Power: 26	the catalyst code means that the change in chemical make up of the exhaust the computer is looking for between the pre cat sensors and the post cat sensors hasnt changed enough. This is usually a cat problem, but sometimes can be a sensor problem. Dealer diagnostics are usually required to get to the exact root of the problem. The 50k laws shouldnt matter between states because it is a federal law, i'd try that route. You could always trade in for a 5.0 like everyone else seems to be doing! __________________ -Jay- jonathanjamesphotographer.com

05-01-2011, 09:58 PM	#5 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 19	It happened to me, first time in 9K miles, usual day,usual road, sucked __________________ Boosted V8 hunter 2850 lbs and 375WHP

05-03-2011, 02:40 PM	#13 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 19	Good thinking... I use it all the time - also VDC off __________________ Boosted V8 hunter 2850 lbs and 375WHP

05-03-2011, 10:47 AM	#6 (permalink)
IcedZ Base Member Join Date: Feb 2009 Location: Gainesville, FL Posts: 194 Drives: 09 370 Yellow, 6MT Rep Power: 18	Dropped my car off this AM, just got a call. They said that the catalytic converter is bad! WTF?! This actually warrantied for 5 years / 80k miles. Still, a cat shouldn't go bad at 40k miles.

05-03-2011, 05:57 PM	#14 (permalink)
BrandonT Base Member Join Date: Apr 2011 Location: Denver Posts: 169 Drives: 2009 370Z White Rep Power: 16	IcedZ did the "special" tech ever get back to you in March? Just bought a Z. I don't mind kinks here and there, as long as they are fixable, but if not I have little patience for this sort of thing. Mine hasn't really dogged yet, but I have noticed a jerky acceleration from a stop. Bummer is nothing this side $75k excites me in vehicles besides the Z (not for performance, Mustang GT can match that, more that excited "I want to drive this thing fast" sort of feel).

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