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I drove mine around for about an hour and a half after driving it home from work yesterday, maybe 15 minutes of cooling in between. Oil temps were up near or slightly over 220 the whole time (77 degrees out) and I was on and off the throttle in every gear and I could not say I felt ANYTHING like what you describe. Every car will get heat-soaked and lose a little power and feel kind of laggy in heavy traffic but a little cruising at speed should clear it up, and it shouldn't be as bad as what you describe! That is crazy! The only thing I can think is, I tend to roll into the throttle rather than tromp it. I ran mine to redline 3 - 4 times in 1st with the tires warm and I am not feeling it break loose or the VDC come on, but it's definitely going to redline in a big hurry, feels about the same as my old '08 350Z, which is what I'd expect, it's not like an extra 25 hp and 65 lbs less weight makes much difference especially with a passenger in the car. I also got into it from 2500 RPM in 4th and 5th several times, for short periods, and obviously it wasn't really "fast" even once it got up past 3500 RPM or so but it definitely was pulling harder than the "average" car. Do you have this stuff happen when you aggressively roll onto the throttle or is it mostly when you stomp it to the floor? |
yeah i was driving last night in a very secluded area practicing some fishtailing and th car was HOT, but no problems at all like you guys.
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No there is no need to step on it. It's just casual driving. All of my tests are done while the car is rolling, and it does not involve aggressive driving. If you watch the Youtube video posted, then you can see it's more than just lag. I'll do some more testing sometime once I get the headlights back on.
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Found a gun metallic NISMO and will be trading in for it this weekend. I'll be back on this thread if I encounter the same issue with that model. Good luck guys.
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I've not dealt with anything major, but I notice I can barely keep up with an Accord sedan O_o... well not without letting the exhaust roar making it sound like I'm trying really hard. |
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I went house searching over the weekend and drove the car quite a bit with ambient temps hitting 92F. The oil temps hovered around 210F max, and I even had the A/C running. To be honest, the car didn't feel very sluggish. It was the typical slight power drop with the A/C running, but it was able to pull hard in 2nd and 3rd with virtually no lag. It was a relatively good day to drive around and not bog gears so much. All I've done so far was remove the fang vent covers a week ago when reinstalling the headlights. Anyhow, the car is down again to get one headlight shipped out for repairs. :( |
Just drove the car and experienced this lag for the first time.. I was about 20mph then suddenly floored it, and then a good 1.5 seconds passed before the car started to move.. It happened many times and specially when I'm going slow in a curve or something.
I think it has to do with the VDC... will try again tomorrow in manual mode vdc off. |
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Reason I ask is, I did lose power taking a right-hand turn from a dead stop with the car cold, tires cold, etc. and I could maybe see VDC coming on because I did tip in pretty aggressively, but I did not see the light. :confused: |
TBH I'm not sure. If I was doing something that really required VDC to kick in quite a bit I was usually not concerned with looking down at the cluster. And it's been months since I've had the car so little details like the VDC light are very much a blur to me now.
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I'm trying to determine if I experienced the problem in that scenario or if I could have just missed the VDC blink (or if it was some other issue.) I'm thinking it was VDC. I hope. :p |
i have vdc kick in often without the light coming on.
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I also had this one happen... i was on a slight uphill - needing to merge out onto a road with speedy traffic... disappointing.. |
I have a stock 09 touring sport and have been experiencing this EXACT issue for about a month now. This is normal day to day driving, have never raced the car and only JUST turned over 13k miles. Everything you guys say describes what I feel exactly. I've gone to one dealership that didn't do anything. Will go to the dealership that changed out my ECU on Friday.
Has anyone had any luck with finding out what is going on? It was so bad last night I couldn't even get the car to go up my driveway....granted, its a little steep, but it's a 370 for ?#$^@ sake!!! |
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Summers are always bad. Typically the exhaust would drone very loud, and the car barely has the power to move when I give it more throttle. However, something changed since the accident in March. The shop replaced a broken intake box, and that's all they touched in the engine bay. This summer is much hotter than the last, but I have not encountered the throttle lag as much since the accident.
All I've done different so far is open up the fang vents. I can drive all over the place in 90F temps with the A/C running, and I hardly encounter a situation where the car falls flat on its face while making a left turn or running across the street. Amazingly the car has been pretty pleasant to drive. What's interesting is that the oil temps hardly touch 220F as well. Even if it does, it literally cools down while sitting at the traffic light on a hot summer day. That's weird because I don't remember the oil temps doing that. Cheap mod... open up the fang vents. [shrugs] |
FWIW I ran with open fang vents and it didn't do jack for my problem.
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Power in general was greatly reduced with oil temps running in excess of 220*F. On a hot summer day driving the Z almost felt like driving a Civic... it was just dog slow. I believe they are two seperate issues. One related to ECU/VVEL controls and the other a byproduct of excessive heatsoak. In comparison, my Mustang barely breaks a sweat when it's 105*F out and I have the A/C blasting. The two cars are like polar opposites when it comes to temperature sensitivity. |
This has been happening to me too. Today it happened a lot. Was doing some testing. Oil temps were at 220 to 225 and it happened at every red light. Went to the grocery and when I got back on the road, temps were 180ish and it was gone for a while....
I have to have it way above 3000 rpms to combat this symptom. There were a few times it was a little hairy as I needed the power and it was not there. Could definitely be a safety issue. I do have HAI's installed too. Hmmmm. Wonder if its hear soak and hi oil temps that are causing this. Since it happens when you are at a dead stop for a few minutes. edit: outside temps were 80. |
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Did more testing today on my way in to work. Outside temps were 58. Oil temps were just over 180 degrees, not once did the gas pedal delay happen. Tested it on many red lights... I think it's definately heat related.
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I wonder if some sensor(s) is getting heatsoaked and giving false readings. IIRC, I read about MAF sensors losing accuracy when it gets too hot. How about cam and crank sensors? It doesn't make sense because our motors idle smoothly. [shrugs]
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That doesn't make much sense in my case, though, where I experienced the problem even while the engine was (relatively) cold. Same thing with Iced Z.
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If it helps, since I've switched to the Nismo, I've noticed a very small lag in high temps with it as well but it does exactly what Digi described above. It cools down very quickly. I've done no mods to the car other than audio. I do plan on CAIs soon so I'll post if the small delay I notice decreases any further.
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Started noticing this problem this summer. I have a Nismo
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Only thing I can say is what I said before: report it to Nissan. Not that it affects me anymore anyway. |
I've got the twins now, but I'm not sure what goes into the GTM Uprev flash. Throttle response feels the same, and the lag or loss of power is still noticeable if I punch it in 1st or 2nd from a roll at low revs. In regards to the throttle map, I didn't hear anything about it so I guess it's still the same.
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Drive by wire+emission control=laggy
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More like: drive by wire + VVEL+ heat soak = laggy
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If it makes anyone feel better, my 2004 M3 has the same throttle response lag when you tap it real fast. Seems to be mainly a DBW issue.
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any updates on this issue? my car has this issue so extremely bad... I almost got killed today trying to make a left turn at a traffic light where I barely moved and on-coming traffic almost tboned my *** into oblivion...
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Yea it stinks even with turbos. Some owners resorted to UpRev tune which alleviates this issue, and others used the Sprint Booster. I have the UpRev tune, but it's only to support forced induction. Anything related to the throttles is kept stock.
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