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Old 07-15-2014, 08:37 AM
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Throttle Lag

Morning:
I own a 2014 Jeep Wrangler Rubicon Unlimited. with manual transmission. I noticed that there is a throttle lag that is quite annoying. If I shift and accelerate, the engine responds fine, but once I step off the accelerator, no matter how briefly, I get no response from the engine for about a second. That makes driving in the lower gear quite annoying. I took the car to the dealer and they said that they found no issue, therefore no fix. Is anyone having similar issues?
Thanks, Peter
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Old 07-15-2014, 12:09 PM
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Re: Throttle Lag

Welcome to drive by wire. There are some tuners that purport to adjust throttle sensitivity but I have not tried any personally.
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Old 07-15-2014, 03:43 PM
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Re: Throttle Lag

However, I disconnected the battery for 30 minutes and the lag disappeared magically for a few miles and then it comes back. If that throttle lag is normal, it shouldn't be reversed? Also, I didn't experience it when I bought the car.
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Old 07-16-2014, 07:31 PM
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Re: Throttle Lag

Well, yesterday I disconnected and reconnected the battery and the responsiveness was fine the whole day. Today I took it on the highway and as soon as I shifted into 6th gear, the lag was back in all gears. The thing is that when I bought the car, there was no lag. It started all the sudden on Monday a week ago on the way to work when I downshifted to 4th gear and I though the engine is stalling. I just find no joy in driving an unresponsive bucked around. Ready to get rid of the Rubicon before it is one year old. My wife's KIA RIO has a much better throttle response that the Jeep.
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Old 07-21-2014, 08:58 AM
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Re: Throttle Lag

The service dept. at the dealership said that this lag is normal. Period!

After Battery disconnect/reconnect, throttle response is smooth and no hesitation, Just like the time when I bought the Jeep. The only drawback is that I cannot shift into 6th gear or I must reset the whole thing with the battery again
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Old 07-21-2014, 04:24 PM
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Re: Throttle Lag

Jeep needs a reliable manual for the Wrangler. Has any other manual ever been this much trouble in a Jeep? Clicking...hard time shifting...throttle lag etc. I hope they put the NSG370 out of its misery. It's an old German piece of crap sourced from Mercedes that needs to go. I've actually written about this in another thread or two but no one here who really knows what they are talking about has commented. I'd love it if one of those people could provide more info. I can't be the only one waiting for a wrangler with better mileage numbers but who would never buy one with an automatic.


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Old 07-21-2014, 11:29 PM
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Re: Throttle Lag

Not sure how the transmission relates to throttle lag.
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Old 07-22-2014, 03:02 AM
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Re: Throttle Lag

Quote:
Originally Posted by pethage View Post
Well, yesterday I disconnected and reconnected the battery and the responsiveness was fine the whole day. Today I took it on the highway and as soon as I shifted into 6th gear, the lag was back in all gears. The thing is that when I bought the car, there was no lag. It started all the sudden on Monday a week ago on the way to work when I downshifted to 4th gear and I though the engine is stalling. I just find no joy in driving an unresponsive bucked around. Ready to get rid of the Rubicon before it is one year old. My wife's KIA RIO has a much better throttle response that the Jeep.
Something is wrong. Take it to a different dealer. The throttle lag isn't that bad on the 3.6.

.
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Old 07-22-2014, 04:01 AM
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Re: Throttle Lag

you guys need to invest in a sprint booster or something like it. its a modual that plugs into the ECT (electronic throttle control) modual on or just above the gas pedal. on its 2nd setting it will make it feel like a cable driven car and not like DBW.
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Old 07-22-2014, 04:05 AM
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Re: Throttle Lag

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Originally Posted by tomralph View Post
Not sure how the transmission relates to throttle lag.
not sure eighter but im 100% sure its due to the electronic throttle control. down on the gas pedal there is a small modual that controls the rate in which the TB opens and closes. no matter how fast you hit it, it will always open at a set rate and can be especially bad when getting back into the throttle after coming off it.
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Old 07-22-2014, 01:48 PM
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Re: Throttle Lag

Hi Strongjeff:
Sprintbooser like the Superchip FLASHPAQ 3872?
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Old 07-22-2014, 03:06 PM
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Quote:
Originally Posted by pethage View Post
Hi Strongjeff:
Sprintbooser like the Superchip FLASHPAQ 3872?
No. It doesnt acually program. What it does is it modifies the signal from the etc to the tb
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