Throttle sensitivity (non-uniform)
12-17-2010, 12:40 PM
#1
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Throttle sensitivity (non-uniform)
2010 G37 Sedan.
The problem I am having is that the accelerator pedal is extremely sensitive. Approximately 75% of the acceleration is within the first 30% of the pedal travel. The car doesn't accelerate faster if I "floor" it instead of just pushing the pedal down an inch.
I have learned to live with it, but whenever my wife (and occasionally my teenage daughter) drive it, they aren't used to it. They seem to always be driving angry... Gunning it and slamming on the brakes. Yes, the brakes are very sensitive too. I'm afraid she's going to wreck the car.
What I would like is for the throttle to be uniform. 50% pedal gets 50% acceleration.
Infinity Dealer says there is no way to adjust this. Any ideas?
The problem I am having is that the accelerator pedal is extremely sensitive. Approximately 75% of the acceleration is within the first 30% of the pedal travel. The car doesn't accelerate faster if I "floor" it instead of just pushing the pedal down an inch.
I have learned to live with it, but whenever my wife (and occasionally my teenage daughter) drive it, they aren't used to it. They seem to always be driving angry... Gunning it and slamming on the brakes. Yes, the brakes are very sensitive too. I'm afraid she's going to wreck the car.
What I would like is for the throttle to be uniform. 50% pedal gets 50% acceleration.
Infinity Dealer says there is no way to adjust this. Any ideas?
12-17-2010, 03:36 PM
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You can put a firm sponge in between the gas pedal and the floor behind it making it a little harder to push the gas- although this may become a safety issue in situations where hard and quick acceleration is needed to avoid an accident.
12-17-2010, 04:09 PM
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2010 G37 Sedan.
The problem I am having is that the accelerator pedal is extremely sensitive. Approximately 75% of the acceleration is within the first 30% of the pedal travel. The car doesn't accelerate faster if I "floor" it instead of just pushing the pedal down an inch.
I have learned to live with it, but whenever my wife (and occasionally my teenage daughter) drive it, they aren't used to it. They seem to always be driving angry... Gunning it and slamming on the brakes. Yes, the brakes are very sensitive too. I'm afraid she's going to wreck the car.
What I would like is for the throttle to be uniform. 50% pedal gets 50% acceleration.
Infinity Dealer says there is no way to adjust this. Any ideas?
The problem I am having is that the accelerator pedal is extremely sensitive. Approximately 75% of the acceleration is within the first 30% of the pedal travel. The car doesn't accelerate faster if I "floor" it instead of just pushing the pedal down an inch.
I have learned to live with it, but whenever my wife (and occasionally my teenage daughter) drive it, they aren't used to it. They seem to always be driving angry... Gunning it and slamming on the brakes. Yes, the brakes are very sensitive too. I'm afraid she's going to wreck the car.
What I would like is for the throttle to be uniform. 50% pedal gets 50% acceleration.
Infinity Dealer says there is no way to adjust this. Any ideas?
I would guess that the problem is that the other vehicle they drive requires the accelerator to be depressed a long way to get moderate acceleration. I drive a few different cars and have just gotten used to pressing the accelerator to the point where the result is what I want rather than a specific percentage of the travel.
I don't think this is an automotive problem but rather the need to get experienced with a new car. Once they get used to the way the G drives this will just disappear...
12-17-2010, 04:36 PM
#5
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My G37x sedan accelerates very smoothly unless you floor it. My wife has no problem driving it, and our roads are very icy right now. Have your infiniti service dept look at it again or try another Infiniti dealer, because that rapid acceleration is not normal. Maybe the throttle position sensor needs adjustment, or maybe VDC is not coming on?
12-17-2010, 05:34 PM
#7
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One of the cons of drive-by-wire throttle bodies, if only a mechanical drive swap was easy..
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12-18-2010, 08:10 PM
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Originally Posted by llee916
You can put a firm sponge in between the gas pedal...
Originally Posted by zmzmzm
Once they get used to the way the G drives this will just disappear...
12-19-2010, 12:18 AM
#12
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2010 G37 Sedan.
The problem I am having is that the accelerator pedal is extremely sensitive. Approximately 75% of the acceleration is within the first 30% of the pedal travel. The car doesn't accelerate faster if I "floor" it instead of just pushing the pedal down an inch.
I have learned to live with it, but whenever my wife (and occasionally my teenage daughter) drive it, they aren't used to it. They seem to always be driving angry... Gunning it and slamming on the brakes. Yes, the brakes are very sensitive too. I'm afraid she's going to wreck the car.
What I would like is for the throttle to be uniform. 50% pedal gets 50% acceleration.
Infinity Dealer says there is no way to adjust this. Any ideas?
The problem I am having is that the accelerator pedal is extremely sensitive. Approximately 75% of the acceleration is within the first 30% of the pedal travel. The car doesn't accelerate faster if I "floor" it instead of just pushing the pedal down an inch.
I have learned to live with it, but whenever my wife (and occasionally my teenage daughter) drive it, they aren't used to it. They seem to always be driving angry... Gunning it and slamming on the brakes. Yes, the brakes are very sensitive too. I'm afraid she's going to wreck the car.
What I would like is for the throttle to be uniform. 50% pedal gets 50% acceleration.
Infinity Dealer says there is no way to adjust this. Any ideas?
It is annoying, especially if you are used to European cars that have either a totally linear throttle or much closer to linear. Japanese are the opposite and seem to think people are tricked by the jumpy throttle response (wow, this car is peppy!!) and too stupid to notice that there is little extra there in the second half of the throttle.
Not sure if your car has "snow mode," but it basically reverts the throttle to linear. It is described as desensitizing the throttle, but it is really just close to "normal" by European standards.
I drove around with that on last winter when I first got the car (no or very little snow on the ground--I just didn't like the jumpy throttle). After a while, the adaptive transmission will get the idea that you prefer a normal throttle. When you switch back to regular mode, it will still be jumpy, but not so bad. Now I just have to be a bit sensitive with the right foot instead of driving like I am walking on egg shells.
Despite what others may say, if you floor it in snow mode, you will get exactly the same full acceleration that you do in non-snow mode. It just flattens the throttle curve instead of hyping it towards the tip-in.
12-19-2010, 05:39 PM
#13
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The hare-trigger throttle was a moldy old Detroit trick (per Car & Driver) when emission standards were changed decades ago. I noticed it too and I don't like it. Thanks for the tip on the snow mode.
12-20-2010, 08:54 AM
#14
Texasdoc - I hear what you are saying. I've been trying to get used to this cars setup. It feels like a hairline change in the throttle will cause a downshift and off the car goes. To smoothly cruise around town is challenging, but is can be done. You have to control your urge to mash the throttle.
Is there any adverse effect to use the snow mode on dry conditions?
Is there any adverse effect to use the snow mode on dry conditions?
