Ok, well my jk is brand new just turned 2k miles.... ive been noticing some little quirks here and there, which is ok. but my biggest quirk is the gas peddle, or throttle position sensor is very sensitive....for example you give it gas and like an 1/8 of more peddle and it just takes off then it seems like it hits a flat spot. its hard to completely describe, but it is defenitly not smooth consistent acceleration...has anyone else had this problem...btw i have a 6 spd. thanks

 

yes
i noticed that its impossible to hold the motor at any rpm between idle and 2800.
i know its due to the whole electronic throttle

its not really a problem tho its only evident in neutral

 

I wonder if this can be remedied by a dealer re-flash? or maybe would the superchip flashpak solve this?

 

I would take it in and let them do a reflash. I have a 10 Rubi with a 6spd. and don't have that problem. It's smoother than any of my vehicles with a mechanical linkage and it holds at any rpm perfect.

 

I agree, that's not normal.

 

mine sure doesn't do that

 

If anything have the opposite problem of the throttle not responsive enough for my tastes

 

If my '09 6-speed is idling in neutral & I try to gently increase the revs very slowly & gradually up from idle to around 2500RPM then yeah, I experience the same as you. The revs will kinda rise, then fall again until you give it a fair bit more gas & then rev up again past the point you're trying to reach; it's certainly not like the old cable-operated system that was gradual & consistent.

I've already asked the service manager at my dealer about it, & he said it's normal & and the computer avoids hanging around in that rev range without load due to emmissions. Same reason why when you rev it in neutral & then take your foot off the gas the revs drop slowly & gradually; snapping the butterfly valve shut on a revving motor (as would happen in the old days when you pumped the gas quickly on & off) results in unburnt fuel in the exhaust which equals BAD for emmissions.

Also why when trying to use the engine braking feature going down steep hills (ie: operating the engine at higher RPMs with the throttle closed in a lower gear) the computer will suddenly give it gas when it hits around 3000RPM & force you to apply the brakes; all to do with emissions apparantly.

 

Mine seems completely normal, and I can set up any acceleration profile between 1700 and 3000 rpm (until it hits the 3rd, obviously - then it's gearing-defined as expected). The downshifts (kickdown) are a bit delayed, like on every modern automatic.

Mind, I have a Rubicon, which uses different gearing from all other options. Maybe that makes a difference.

 

All I can tell you is that with my 10 Rubi 6spd. it seems to operate as if I have a mechanical linkage and I know it doesn't. In fact, I can rev it and it stays and then drops down normally when I'm off the gas. I did this a number of times after installing a dual cat back exhaust to test/check it. As for engine braking, I use the gears all of the time going down hill. No matter how steep they are I am not forced to apply the brakes and my computer doesn't "give it gas". It doesn't act any differently than my 89 5 spd. when using the gears to decelerate. I don't think your problem is being addressed by the service manager because, again, my 10 Rubi does not act that way at all.