Gen4 throttle lag mod

Westxsrt10 · Mar 25, 2012

I tried a differiant approach to improving the throttle response of my 08 Viper.
I did the standard throttle calibration steps but added a 3/4" wood spacer behind the accelerator pedal.
It appears this change has made a significant improvement!

I'm looking for other Gen 4 owners try this so I know it's not just my imagination.

calib.steps below:

1. Insert key in ignition , turn key to the far right but don't start the car.
2. Depress accelerater quickly to the floor with the 3/4" spacer behind it. (hold it there)
3. Turn the ignition switch to off, then release the gas pedal, remove the spacer. (done)
Start and drive as normal.

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08 Viper coupe, Belanger headers

01sapphirebob · Mar 25, 2012

Interesting. I would love to hear what some of the other results are. :eater:

Viper Specialty · Mar 25, 2012

Probably won't hold. That part of the calibration is floating, and it will alter it back [or set a code for out of range] over a short time period, depending on how they set it up originally.

What this is in effect doing, is changing the range so that 0-75% pedal = 0-100% throttle, rather than 0-100/0-100. It is having an effect on the respose rate [The same thing I have preached time and time again is the REAL problem with the Gen-4 DWB setup, not the hardware itself]

FastZilla · Mar 26, 2012

Hmmmmmm...Interresting & good find/info! That was the main reason I went to the Mopar ECU. Even if it doesn't hold the setting and "learns" the correct range after a while - it only takes seconds to reprogram & the small wood block stores easily in the trunk with the tire kit.

:eater:

Chelseasnake · Mar 26, 2012

you should go 1 step further and use a...................... brick lol

Hamrhead · Mar 26, 2012

Interested to see if this will continue to work and not set a code. Please keep us updated.

Westxsrt10 · Mar 31, 2012

It finally stopped raining so I took it out again today. The throttle still seems better than before, I drove an 08 with the Mopar ECM and it wasnt any better than mine is today.
I'll give it another 5 cycles and report back. (no CEL, no hidden codes either, I do let it warm up to operating temp. before putting it in gear).

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08 Viper, Belanger headers

Gen4 throttle lag mod

Westxsrt10

Viper Owner

01sapphirebob

Enthusiast

Viper Specialty

Legacy/Supporting Vendor

FastZilla

Enthusiast

Chelseasnake

Enthusiast

Hamrhead

Enthusiast

Westxsrt10

Viper Owner

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