Gas Pedal Delay

christian370z

That helps me understand the background, I would send you some rep. but it won't let me lol. This VVEL uncrackability is holding back more than just the power potential of this car then, I knew about the intake control opening up top which must be why response is so much quicker in the upper rev range too.

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-320whp / 259wftlbs-
SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

KillerBee370

So I go in to my tuner and tried to explain the problem to him. He hooks up the computer to my car (which already had ECU tune) and does something. He then proceeds to look at me and smile and say "Ok.. I'm not going to tell you what I did but let me know if you notice anything".

Definitely no more laggy throttle problems. IDK what he did but it seems to be fixed. I will have to report back to him and get an answer for you guys. (Not that it will help unless you have the same tune however it might lend some insight)

6spd

thats bs. he should tell you what he did. you should demand to know what he did, after all it is your car.

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-Jay- jonathanjamesphotographer.com

KillerBee370

It's not like that. If it was a one time deal of course I would find out. He put over 700 dyno miles on my car so we have a bit of history. He likes to joke around from time to time. Also, he's going to tell me but he wants to get the feedback as well in a "double blind" sort of way.

6spd

ok that makes sense. i'd love to hear what he did!

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-Jay- jonathanjamesphotographer.com

TROOPER

So it looks like a tuner is needed to fix this problem..??

I've had this happen twice since I added CBE & HFC, but I assumed it was VDC or maybe the ECU relearning after the mods.

If it needs a tune, what's the alternative to the Cobb AccessPort since they stopped making it.

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Darren
"Guv Motors Passion Wagon"

370zproject

i dont know if its already been said but i just throw it in manul and down shift and then hit the gas..

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Brake Upgrade Package ate blue, hawk hp ceramic pads, and slotted rotors

wilsonp

You can just downshift without putting it into manual mode.

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2014 Cayman S PDK Sport Chrono White/Black
Was 2009 370Z Touring Sport+Nav 7AT Metallic Black/Persimmon
Was 1991 NSX Auto Black/Black

370zproject

oh?

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Brake Upgrade Package ate blue, hawk hp ceramic pads, and slotted rotors

christian370z

^Just flip the downshift paddle and it will kick down without moving the shifter into M mode.

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-320whp / 259wftlbs-
SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

370zproject

ah then try that .. then put ur foot down

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Brake Upgrade Package ate blue, hawk hp ceramic pads, and slotted rotors

L8N8

I've had this same exact issue for about 3 months. I bought the car in February and the issue reared its head in May. I have a 2010 6MT w/ Sp pkg.

For about the first 15min after starting the car, acceleration is fine and very responsive. Afterwards, no matter what gear you're in it bogs down for 2-3 seconds when you hit the gas. It doesn't matter if you floor it or even moderately press the gas. Oil temp, toggling VDC on/off, having Smode on/off; none of that matters either. I agree that they all play a role in throttle response but this issue is completely different, since none of those items previously mentioned cause the car to "fall flat on its face".

Nissan dealership will tell you that it's an oil temp issue and recommend an oil cooler. They will also tell you that Nismo is developing an oil cooler that you can buy. Why should I have to buy additional parts to fix an apparent problem from the factory????

DIGItonium

^ Exactly the same issues I'm having. I don't think it's an oil temp issue because lately I notice it happening when oil temps barely touch 180F. Plus, it comes and goes. One minute the car bolts when I quickly tap the pedal in 2nd gear, and the next minute I'm flooring it and it feels like the throttle is barely opening at 20%.

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wilsonp

Some of these issues sound like the posts about the brake switch sticking and causing the ECU to limit throttle to 15% - maybe you could get an OBD gauge or recorder and see what it reports when you have the problem.

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2014 Cayman S PDK Sport Chrono White/Black
Was 2009 370Z Touring Sport+Nav 7AT Metallic Black/Persimmon
Was 1991 NSX Auto Black/Black

IcedZ

I did this. But every time that I'm driving around with my computer hooked up, the problem won't show itself (at least not near the extreme that it sometimes does). Of course it did it all weekend, while I was out of town. Just my luck. I'll keep trying and post results for all.