Gas Pedal Delay

ROLLingKING · 01-22-2011, 11:52 AM

Quote:

Originally Posted by IcedZ

your not feelin it icedZ??
i heard on speed channel this thing has worked great for lots of ppl

ChrisSlicks · 01-22-2011, 12:11 PM

Quote:

Originally Posted by ROLLingKING

your not feelin it icedZ??
i heard on speed channel this thing has worked great for lots of ppl

If the car won't go when he floors it how is it supposed to help?

DIGItonium · 02-05-2011, 02:44 PM

I just wanted to touch up on this topic in regards to updates about my recent experiences for the past couple of months. As usual, my drives are to and from work in a span of about 15-20 minutes of driving. I also ran errands as well, so that adds about an additional 15-30 min of driving.

We had a couple of unusually warm weather over a week ago with near 70s. I can get the oil temps to hit 200. Then I've also driven the car then the temps were in the 20s and 40s.

The car has not been acting up lately. Throttle and electronic pedal feels is very good with hardly any dead zone or hesitation. The car immediately responds under 3k RPM when I give it more throttle. I get my 91 octane fuel from the same stations: Conoco and Philips. I don't see a 10% ethanol sign at these stations compared to Quick Trip. I'm not sure if that or winter mix makes a difference either.

What's this "tip in" knock that some owners has been experiencing? Is a case where the ECU quickly retards timing on throttle tip in? I was reading the Stillen SC thread, and owners talk about increased "tip in" knock as the engine gets hotter from longer duration of driving.

If so, what's the most economical way to get a visual or log engine knock or events where the ECU retards timing due to various factors including knock?

6spd · 02-05-2011, 03:06 PM

Quote:

Originally Posted by DIGItonium

If so, what's the most economical way to get a visual or log engine knock or events where the ECU retards timing due to various factors including knock?

buy a really expensive real time scanner, im talking 3-5k $$ machinery.

IcedZ · 02-06-2011, 11:53 AM

I'm experiencing the issue every single day still. I also had my steering column solenoid lock up. They also said they couldn't get my driver door to replicate the window not rolling up all the way, so couldn't fix that. I will be at 36k miles within the next 2 weeks. I think I've decided to look for a new car. With all these issues and Nissan not helping, I'm giving up I think.

6spd · 02-06-2011, 12:43 PM

Quote:

Originally Posted by IcedZ

I'm experiencing the issue every single day still. I also had my steering column solenoid lock up. They also said they couldn't get my driver door to replicate the window not rolling up all the way, so couldn't fix that. I will be at 36k miles within the next 2 weeks. I think I've decided to look for a new car. With all these issues and Nissan not helping, I'm giving up I think.

another mustang converter maybe?

DIGItonium · 02-06-2011, 05:44 PM

Sorry to hear that... in fact, I was going to trade it in for an '04 NSX with about 30k miles. Price was under $50k, and I didn't mind ditching the forced induction idea to get the NSX and keep it N/A, but I was 2 days too late.

Anyhow, I've decided to continue the project in hopes that an ECU tweak for forced induction will alleviate this issue. It's definitely the only V6 I've ever owned that lacks low end punch that feels like it's computer limited (i.e., safety measures?)

IcedZ · 02-07-2011, 09:03 AM

Quote:

Originally Posted by 6spd

another mustang converter maybe?

Very likely. Can't beat it for the price!

m4a1mustang · 02-07-2011, 09:05 AM

Quote:

Originally Posted by IcedZ

Very likely. Can't beat it for the price!

Well if you have any questions feel free to PM me.

import111 · 02-14-2011, 10:20 PM

Any new news on this? Getting more annoyed every day. 20k miles and the same problem. today was real bad. at least 60% of the time I went from a stop in 1st gear it gave me no power until 4k rpm. Usually it is more like 40% of the time. Seems that when this happens it is about 4k rpm that all of the sudden the power comes back.

Mjthind · 02-14-2011, 11:06 PM

funny my cousins car does that to but my other cousins doesn't do that but his has 2500 miles on it and my other cousins has 35000 miles on ti weird right?

IcedZ · 02-15-2011, 02:42 PM

Quote:

Originally Posted by Mjthind

funny my cousins car does that to but my doesn't and i have 2500 miles on

So you can understand our pain it sounds like.
What years are they? Any mods? Also, what oil and filter do you and he use?

haggomyeggo · 03-09-2011, 11:02 AM

I am about to pick up M4s 370 today and I did notice the same thing a couple of times while driving on the test drives. As long as you roll into the throttle it doesnt do it but what i dont understand is why the engine revs so slow when using the gas pedal but if you let the syncro rev match do its thing the throttle response is instant. maybe there is something here so maybe its somewhere between the pedal and the ecu/throttle body

Just a thought
anyone agree??

m4a1mustang · 03-09-2011, 02:38 PM

Quote:

Originally Posted by haggomyeggo

I am about to pick up M4s 370 today and I did notice the same thing a couple of times while driving on the test drives. As long as you roll into the throttle it doesnt do it but what i dont understand is why the engine revs so slow when using the gas pedal but if you let the syncro rev match do its thing the throttle response is instant. maybe there is something here so maybe its somewhere between the pedal and the ecu/throttle body

Just a thought
anyone agree??

I agree that if you roll into the throttle the car feels OK. You just have to train yourself to do that.

As far as the slow revving, I think it's just that electronic delay between your foot going down, progressively increasing the throttle, and the computer reading the potentiometer. With SRM, the computer just sends a command signal that basically says "5,000 rpm NOW!" and the engine reacts. With the throttle, the computer is reading progressive throttle input from 0% to whatever amount of throttle you give, so the engine isn't going to rev quite as quickly.

6spd · 03-10-2011, 12:00 AM

thats probably why i never notice it either, i always roll on the gas, rarely ever just mash it.

02-05-2011, 02:44 PM	#498 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	I just wanted to touch up on this topic in regards to updates about my recent experiences for the past couple of months. As usual, my drives are to and from work in a span of about 15-20 minutes of driving. I also ran errands as well, so that adds about an additional 15-30 min of driving. We had a couple of unusually warm weather over a week ago with near 70s. I can get the oil temps to hit 200. Then I've also driven the car then the temps were in the 20s and 40s. The car has not been acting up lately. Throttle and electronic pedal feels is very good with hardly any dead zone or hesitation. The car immediately responds under 3k RPM when I give it more throttle. I get my 91 octane fuel from the same stations: Conoco and Philips. I don't see a 10% ethanol sign at these stations compared to Quick Trip. I'm not sure if that or winter mix makes a difference either. What's this "tip in" knock that some owners has been experiencing? Is a case where the ECU quickly retards timing on throttle tip in? I was reading the Stillen SC thread, and owners talk about increased "tip in" knock as the engine gets hotter from longer duration of driving. If so, what's the most economical way to get a visual or log engine knock or events where the ECU retards timing due to various factors including knock? __________________

02-06-2011, 05:44 PM	#502 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	Sorry to hear that... in fact, I was going to trade it in for an '04 NSX with about 30k miles. Price was under $50k, and I didn't mind ditching the forced induction idea to get the NSX and keep it N/A, but I was 2 days too late. Anyhow, I've decided to continue the project in hopes that an ECU tweak for forced induction will alleviate this issue. It's definitely the only V6 I've ever owned that lacks low end punch that feels like it's computer limited (i.e., safety measures?) __________________

02-14-2011, 11:06 PM	#506 (permalink)
Mjthind Base Member Join Date: Feb 2011 Location: in Posts: 97 Drives: RX Rep Power: 14	funny my cousins car does that to but my other cousins doesn't do that but his has 2500 miles on it and my other cousins has 35000 miles on ti weird right? Last edited by Mjthind; 02-15-2011 at 07:58 PM.

03-10-2011, 12:00 AM	#510 (permalink)
6spd A True Z Fanatic Join Date: Aug 2009 Location: South Florida Posts: 3,001 Drives: Q50RS Rep Power: 25	thats probably why i never notice it either, i always roll on the gas, rarely ever just mash it. __________________ -Jay- jonathanjamesphotographer.com

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02-06-2011, 11:53 AM	#500 (permalink)
IcedZ Base Member Join Date: Feb 2009 Location: Gainesville, FL Posts: 194 Drives: 09 370 Yellow, 6MT Rep Power: 16	I'm experiencing the issue every single day still. I also had my steering column solenoid lock up. They also said they couldn't get my driver door to replicate the window not rolling up all the way, so couldn't fix that. I will be at 36k miles within the next 2 weeks. I think I've decided to look for a new car. With all these issues and Nissan not helping, I'm giving up I think.

02-14-2011, 10:20 PM	#505 (permalink)
import111 Track Member Join Date: Feb 2009 Location: Tucson, AZ. Posts: 622 Drives: 09 Nissan 370Z Rep Power: 191	Any new news on this? Getting more annoyed every day. 20k miles and the same problem. today was real bad. at least 60% of the time I went from a stop in 1st gear it gave me no power until 4k rpm. Usually it is more like 40% of the time. Seems that when this happens it is about 4k rpm that all of the sudden the power comes back.

03-09-2011, 11:02 AM	#508 (permalink)
haggomyeggo A True Z Fanatic Join Date: Mar 2011 Location: IL Posts: 1,723 Drives: Steves old cars Rep Power: 17	I am about to pick up M4s 370 today and I did notice the same thing a couple of times while driving on the test drives. As long as you roll into the throttle it doesnt do it but what i dont understand is why the engine revs so slow when using the gas pedal but if you let the syncro rev match do its thing the throttle response is instant. maybe there is something here so maybe its somewhere between the pedal and the ecu/throttle body Just a thought anyone agree??