Gas Pedal Delay

ROLLingKING

This is a better set up to change the lag problem. once your pedal it precise and has no delay then i would go messin around under the engine. When I get my Z in July im getting this FOR SURE

Sprint Booster For Nissan 370Z

IcedZ

ROLLingKING

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

ChrisSlicks

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

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m4a1mustang

I'm glad I'm not the only one. It's honestly a dangerous situation. There have been a couple times when turning right from a red where the car just WOULD NOT move when I needed it to. Very frustrating.

Hell, even taking off from a light sometimes I bet I could get taken by a Prius.

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cfleming2226

that is the exact problem I am having (even with the bracing for take off, lol) I do notice my temp is running 220 which I have read is a problem, so I am unsure if it is throttle response or an engine safety. The more I read about the temp on the Z's the more it is worrying me, as I live in AZ where it gets pretty damn warm in the winter, and flat out hot in the summer!!!

m4a1mustang

Limp mode shouldn't be an issue until 270ish or wherever it kicks in. 220 is a fairly normal operating temp... shouldn't be the culprit here, although you can feel a difference in power between 220 oil and 200 oil, for example.

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KanataZ

You've decribed my experiences exactly. Stock M6 2010 sport package with less the 2k miles. It's happened twice that were memorable and I was not in anyway way mashing the pedal but simply accelerating moderately from a stop light...the car barely moved into the intersection and then suddenly jolted forward like a rocket. The other time was turning right from a stop sign and even though I had lots of room to go, by the time the car responded (about ten feet after I had made the turn), I'm sure the car coming behind me had to brake. I've never seen any car that is so slow from a stand still sometimes and then it takes off like a rocket. Honestly this must look funny to bystanders; creep off the line and gone like missile. The VDC light doesn't come on so I don't think this is a nanny issue.

Has there been a consensus on a fix? Is it a fuel system issue?

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DIGItonium

You might have a misaligned brake switch as one of the members experienced and resolved. Try this method to resolve your throttle delay because it solved the issues I've been having for months. I posted pictures as a guide:
I have a serious engine problem

There are two things going for our 370Z in terms of throttle issues:

• Throttle Lag - Quickly press down the pedal, and the car stalls around 2k RPM before slowly rising to redline. It feels like VDC is kicking in, but there are no lights. This is a dangerous situation when making a turn and the car won't budge. There are numerous situations where you would accelerate and suddenly engine power cuts off or is limited for a few seconds. It's like the ECU is holding back power.
• Throttle Response - The throttle is less sensitive than the 350Z. Go test drive a 350Z and you find yourself giving gas too early between shifts, but you also find it easier to blip the throttle to downshift.

Try to resolve the throttle lag by visiting my post in the link.

As for throttle response, I'm at loss for words. Disabling VDC tends to improve throttle response because it seems like VDC is aggressive in cutting power even if there is no slippage. Plus, I notice power getting cut when oil temps hit 220F. I park somewhere, turn off the car, turn it back on, and the problem went away. It is annoying to feel abrupt power cut during normal acceleration as if it is being held back.

I think we need to take this up with Nissan.

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cossie1600

Yes, it's just ECU mapping.

I agree, I had said my 350 felt faster than my 370 at the low end

m4a1mustang

That could be it. I might take them off and see if I still have the problem.

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cfleming2226

So it the general consensus when the Oil Temp gets to 220 performance goes downhill and I should expect the delay? I am running at 220 all the time, as its 100+ out every day and soon to me most nights, gotta love AZ.

m4a1mustang

That's not really consensus. Oil temp shouldn't cause the type of delay we are describing. Yes, at 220 the engine will not be as powerful as it is at 200, but it shouldn't fall flat on it's face when you punch it either.

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IcedZ

Doesn't seem to be consensus, but I still feel that could be it. m4a1mustang, it doesn't sound to me like you have experienced this first hand either. You have to feel it and experience it to know what I mean.

m4a1mustang

I do know there is a lack of response (read: noticeably less power) when the temps are higher, I just think what I'm experiencing (2-3 seconds of NOTHING, even with the throttle floored) is unrelated as it doesn't matter if the car is cold or hot... it won't go.

I'm thinking it might be related to the intakes as Daishi suggested. Will have to do some digging this weekend to find out.

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