Traction Control, Sticky gas pedal, Ice mode???

DannyGT · 04-17-2010, 02:19 AM

So, I have been meaning to read a couple of those brake threads but just have been really slammed with work lately. One thing I keep picking out from random threads is the word 'ice-mode' and how people are getting this condition particularly when upgrading brakes.

Now, I haven't upgraded my brakes yet, but I have experienced quite an awkward sensation a few times since I have owned the Z.

Where to begin....

The first time I experienced this was when taking a long sweeping turn aggressively (with traction control on) and upon letting go of the gas the car just seemed to coast and hold my mph...almost like it went into a cruise control mode and kept me on this perfect line where it knows just how far I can take the car without losing traction...I remember thinking to myself "WOW What was that? Some kind of active traction control system like in Formula 1"

This sensation of the gas pedal having a mind of its own has happened maybe 4-5 more times in the last year but almost under similar conditions. Until about 3 days ago. It was a gorgeous night and we were tuning my friends MR2 Turbo with my car, a supra, rs4, and m3. So we are all kind of taking turns doing some baseline pulls with him where suddenly after one of my pulls I downshifted into 2nd after leaving the highway and my car just held this low mph and wouldn't stop. This was, mind you, in a straight line...

I knew it was the same sensation I've had before, just never having felt it in a straight line kind-of threw me for a loop. What happen next, really had me wondering whats going on...

I put it in neutral and coast the last 50 yards or so to the stop light and as I begin coming to a stop, my car decided to just keep the revs at 2k. I looked down thinking my carpet or something was hitting the pedal but nothing! So I have make sure my foot was on the brake and it just continued to keep the rpm at 2k...It did this for about 5-6 seconds when I simply blipped the throttle and it settled down to idle and then it never happened again.

Sorry this had to be so long and hopefully I'm explaining my self clearly but has anyone else experienced this and/or is this ice-mode that you guys are talking about specifically where the car feels as if its holding a light throttle whether in turns or not??

Thanks!

DannyGT · 04-17-2010, 08:38 PM

No one?

Daishi · 04-17-2010, 08:50 PM

You sure you didn't buy a Toyota on accident?

azn370z · 04-17-2010, 08:58 PM

I recall someone had a problem with the srm and the car revved about 4k when he was coming to a stop. Nissan looked at it and fixed it.

DannyGT · 04-17-2010, 09:33 PM

toyota lol, believe me the thought crossed my mind.

Philipp · 04-19-2010, 04:32 PM

Danny
I had the exact same symptoms in second gear but the only difference was that I had the traction control off everytime it happened!
On all 3 occurences, the revs keept the car pushing in coners... Not a good feeling coming in the corner's apex... So far it never happened in a straight line.
I had the same reaction as you did (looking underneath the floor mat etc) but could,nt find any objects in the way.
Anybody else having this issue?
Phil

m4a1mustang · 04-19-2010, 05:02 PM

I think this happened to TheWeatherman (someone correct me if I'm wrong)... turned out to be a faulty SRM sensor or something.

pvs723 · 04-19-2010, 05:06 PM

Interesting, I had the same thing in second gear on an exit ramp with a slight downgrade. The engine did not seem to slow the car down. Happened maybe 2 or 3 times in the 10 months I had the car. Thought maybe it was the downgrade on the ramp but I drive the same ramps all the time and just did not feel right.

DannyGT · 04-19-2010, 11:16 PM

Ya I want to make a correction and say this has happened to me with and without TC on. But always with SRM on. So when it happen for the first time going in a straight line it REALLY freaked me out. Not to mention when I came to a complete stop and it blipped the throttle and kept it at 2k for 3-4 seconds.

Same thing tho, this happens rarely and maybe 5-6 times in the last year...

kgreen · 04-19-2010, 11:20 PM

not trying to jack this thread but DannyGT have you had any problems with your GTM oil cooler? wat are your avg temps in NJ?

DannyGT · 04-19-2010, 11:36 PM

No thankfully not. Had it for something close to 8-9months now and its working perfectly...Even on the hottest days so far at highway speeds it will consistantly stay around 185-200...and in traffice never go about 220-230.

Its great! Alot better than running 260+ under normal spirited driving before I got the cooler.

My lines are working. I know some had received bad lines and I think thats all it was, bad lines. Sam is actually sending me new one's, just because. I told him to send it to me when I receive my SC kit.

fullmonty · 04-20-2010, 08:27 AM

Ya it has happened to me a few times, first time it really took me by suprise, mines a 7AT btw

kgreen · 04-20-2010, 08:35 AM

Quote:

Originally Posted by DannyGT

No thankfully not. Had it for something close to 8-9months now and its working perfectly...Even on the hottest days so far at highway speeds it will consistantly stay around 185-200...and in traffice never go about 220-230.

Its great! Alot better than running 260+ under normal spirited driving before I got the cooler.

My lines are working. I know some had received bad lines and I think thats all it was, bad lines. Sam is actually sending me new one's, just because. I told him to send it to me when I receive my SC kit.

thanks for the reply...i think ill just go with this setup. Defiinitely cant beat the price. appreciate it

ChrisSlicks · 04-20-2010, 11:30 AM

You'll have to have the dealer look at it. The accelerator pedal may need to be recalibrated or worst case replaced. In these fly-by-wire systems the pedal sends a voltage to the ECU, and the ECU has to "learn" what the correct voltages are for the pedal up position as they can vary slightly between pedal units. The SRM is another possibility, but given the description from all your events I think the former is more likely.

Philipp · 04-22-2010, 07:42 PM

Quote:

Originally Posted by ChrisSlicks

You'll have to have the dealer look at it. The accelerator pedal may need to be recalibrated or worst case replaced. In these fly-by-wire systems the pedal sends a voltage to the ECU, and the ECU has to "learn" what the correct voltages are for the pedal up position as they can vary slightly between pedal units. The SRM is another possibility, but given the description from all your events I think the former is more likely.

Chris,
Went to the dealer with this issue... out of luck with that one. The head service guy looked at me like if I was coming from Mars... They said that my foot must have been touching the pedal of something was in the way

May need to go somewhere else on this one. Since there is no TSB on that matter, does anyone got it fixed by a dealer?

04-17-2010, 02:19 AM	#1 (permalink)
DannyGT Track Member Join Date: Jan 2009 Location: Jersey Posts: 919 Drives: 370Z (SOLD) Rep Power: 279	Traction Control, Sticky gas pedal, Ice mode??? So, I have been meaning to read a couple of those brake threads but just have been really slammed with work lately. One thing I keep picking out from random threads is the word 'ice-mode' and how people are getting this condition particularly when upgrading brakes. Now, I haven't upgraded my brakes yet, but I have experienced quite an awkward sensation a few times since I have owned the Z. Where to begin.... The first time I experienced this was when taking a long sweeping turn aggressively (with traction control on) and upon letting go of the gas the car just seemed to coast and hold my mph...almost like it went into a cruise control mode and kept me on this perfect line where it knows just how far I can take the car without losing traction...I remember thinking to myself "WOW What was that? Some kind of active traction control system like in Formula 1" This sensation of the gas pedal having a mind of its own has happened maybe 4-5 more times in the last year but almost under similar conditions. Until about 3 days ago. It was a gorgeous night and we were tuning my friends MR2 Turbo with my car, a supra, rs4, and m3. So we are all kind of taking turns doing some baseline pulls with him where suddenly after one of my pulls I downshifted into 2nd after leaving the highway and my car just held this low mph and wouldn't stop. This was, mind you, in a straight line... I knew it was the same sensation I've had before, just never having felt it in a straight line kind-of threw me for a loop. What happen next, really had me wondering whats going on... I put it in neutral and coast the last 50 yards or so to the stop light and as I begin coming to a stop, my car decided to just keep the revs at 2k. I looked down thinking my carpet or something was hitting the pedal but nothing! So I have make sure my foot was on the brake and it just continued to keep the rpm at 2k...It did this for about 5-6 seconds when I simply blipped the throttle and it settled down to idle and then it never happened again. Sorry this had to be so long and hopefully I'm explaining my self clearly but has anyone else experienced this and/or is this ice-mode that you guys are talking about specifically where the car feels as if its holding a light throttle whether in turns or not?? Thanks! __________________ Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

04-17-2010, 08:38 PM	#2 (permalink)
DannyGT Track Member Join Date: Jan 2009 Location: Jersey Posts: 919 Drives: 370Z (SOLD) Rep Power: 279	No one? __________________ Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

04-17-2010, 08:58 PM	#4 (permalink)
azn370z A True Z Fanatic Join Date: Nov 2008 Location: Seattle Posts: 1,722 Drives: z34 - R1 Rep Power: 490	I recall someone had a problem with the srm and the car revved about 4k when he was coming to a stop. Nissan looked at it and fixed it. __________________ 2010 k23 H&R sport springs / Spc rear camber arms / SSR SP1 / Berk cbe / Varis cf lip / Nismo S-Tune side skirts

04-17-2010, 09:33 PM	#5 (permalink)
DannyGT Track Member Join Date: Jan 2009 Location: Jersey Posts: 919 Drives: 370Z (SOLD) Rep Power: 279	toyota lol, believe me the thought crossed my mind. __________________ Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

04-19-2010, 04:32 PM	#6 (permalink)
Philipp Base Member Join Date: May 2009 Location: Montreal Posts: 189 Drives: 370z SP MT Titanium Rep Power: 16	Danny I had the exact same symptoms in second gear but the only difference was that I had the traction control off everytime it happened! On all 3 occurences, the revs keept the car pushing in coners... Not a good feeling coming in the corner's apex... So far it never happened in a straight line. I had the same reaction as you did (looking underneath the floor mat etc) but could,nt find any objects in the way. Anybody else having this issue? Phil __________________ 2009 370z, MT & Sport package. DynoPack (stock): 268.8WHP & 224.4 Torque//K&N filters//Air cabin filter//HPS Tubes//Tune to come when VVEL...

04-17-2010, 08:50 PM	#3 (permalink)
Daishi Track Member Join Date: Jul 2009 Location: NJ Posts: 683 Drives: 09 370z 6Speed Rep Power: 17	You sure you didn't buy a Toyota on accident?

04-19-2010, 05:02 PM	#7 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	I think this happened to TheWeatherman (someone correct me if I'm wrong)... turned out to be a faulty SRM sensor or something. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

04-19-2010, 05:06 PM	#8 (permalink)
pvs723 Base Member Join Date: May 2009 Location: NY Posts: 5 Drives: 370z, chrysler 300c Rep Power: 16	Interesting, I had the same thing in second gear on an exit ramp with a slight downgrade. The engine did not seem to slow the car down. Happened maybe 2 or 3 times in the 10 months I had the car. Thought maybe it was the downgrade on the ramp but I drive the same ramps all the time and just did not feel right.

04-19-2010, 11:16 PM	#9 (permalink)
DannyGT Track Member Join Date: Jan 2009 Location: Jersey Posts: 919 Drives: 370Z (SOLD) Rep Power: 279	Ya I want to make a correction and say this has happened to me with and without TC on. But always with SRM on. So when it happen for the first time going in a straight line it REALLY freaked me out. Not to mention when I came to a complete stop and it blipped the throttle and kept it at 2k for 3-4 seconds. Same thing tho, this happens rarely and maybe 5-6 times in the last year... __________________ Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

04-19-2010, 11:20 PM	#10 (permalink)
kgreen Enthusiast Member Join Date: Feb 2009 Location: EL Paso, Tx Posts: 387 Drives: SR 370z Rep Power: 243	not trying to jack this thread but DannyGT have you had any problems with your GTM oil cooler? wat are your avg temps in NJ?

04-19-2010, 11:36 PM	#11 (permalink)
DannyGT Track Member Join Date: Jan 2009 Location: Jersey Posts: 919 Drives: 370Z (SOLD) Rep Power: 279	No thankfully not. Had it for something close to 8-9months now and its working perfectly...Even on the hottest days so far at highway speeds it will consistantly stay around 185-200...and in traffice never go about 220-230. Its great! Alot better than running 260+ under normal spirited driving before I got the cooler. My lines are working. I know some had received bad lines and I think thats all it was, bad lines. Sam is actually sending me new one's, just because. I told him to send it to me when I receive my SC kit. __________________ Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

04-20-2010, 08:27 AM	#12 (permalink)
fullmonty A True Z Fanatic Join Date: Nov 2009 Location: Dirty Jersey Posts: 7,762 Drives: 370 Touring/Sport Rep Power: 34	Ya it has happened to me a few times, first time it really took me by suprise, mines a 7AT btw __________________

04-20-2010, 11:30 AM	#14 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	You'll have to have the dealer look at it. The accelerator pedal may need to be recalibrated or worst case replaced. In these fly-by-wire systems the pedal sends a voltage to the ECU, and the ECU has to "learn" what the correct voltages are for the pedal up position as they can vary slightly between pedal units. The SRM is another possibility, but given the description from all your events I think the former is more likely. __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

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