THROTTLE SURGE

Hand throttle may be the patch answer.

Drive by wire is the way to go (notwithstanding the electronics and the inherrent worries about "black box gizmos")

Removes all throttle surge issues.

What you say makes good sense. How you would wire one up is beyond my basic electric skills.
I wonder whether all the electronic trickery on cars is just to stop us making our own mods and to keep the dealer service depts busy.

Agreed. I cannot see why the pot could not be substituted, or a couple of fixed resistors in series/parallel with the existing pot to limit its throttle range while allowing the full range of the pot to control that limited throttle range. This could be switched in or out by a switch.
Don't own a 3.0L, so haven't had the chance to see what could be done. Idea sounds good.
Gerry

Most people put a hunk of foam under the throttle pedal...

fourstall2000
In answer to your question yes it can be done and I don't think it would be overly difficult.
I have fly by wire in my jack and have pondered over the same issue for cruise control.
Basically you would need a selector switch to select foot or hand control, a varistor (pot) to adjust the resisance in the circuit to the butterfly solenoid and that would be a about it. We use these quite commonly in heavy industry for this exact purpose.
The foot/hand throttle would have to be independant of each other as the 2 pots in parallel would alter the resistance and your speed control would be more limited.
There may also be an anolgue feedback to the engine management system which would need looking at but I can't see that being to difficult.
The other option you could investigate is attaching a cable to the foot throttle (the jack has a shaft going up past the pivot point on the pedal so as you pull it towards the back of the vehicle the pedal goes in, with a circular hole in it) then going to a threaded hand throttle so it controls the pedals position if that makes any sense at all.
Tim

Bad news Boys & Girls.

I have attacked this problem from three fronts.

1. Removed pedal control from the vehicle and placed on the bench. With several meters similtaneously connected I discovered that there are two non linear resistances that operate in opposite directions, as one increases the other decreases. The mechanics of this was to much for me so I went to a company that manufactures engine control components and after a time was told that what I wanted would cost more than I could pay.

2. Several 3.0ltr owners and myself went to Nissan to express our concern about the overly sensitive throttle issue in low range. After some discussion with various techs and the "customer service manager" we were eventually told that it was a design characteristic and would not be addressed by nissan EVER.

3. As the same group we approached the NRMA vehicle safety committee from the viewpoint that the vehicle could be dangerous in certain circumstances IE. slippery wet track low range rough surface bounce over cliff everone dies. They took up the ball, inspected several 3.0 ltr patrols and made a report that the problem wasn't sufficiently servere to warrant any further effort.

I then gave up. sold the vehicle and purchased a 4.2tdi ute. No problems.

Save yourself some time and headaches. cut to the chase now.

Just a little aside. Landrover have a dual range throttle control the least sensitive of which is activated with the selection of low range. Wouldn't you think Nissan would be embarrased by not being able to duplicate that effort.

cheers
Foss

Foss,thanks for the information on the linear resistance,I had not got this far in my investigations,so you saved me a lot of work.
With this information in hand it makes Tims suggestion brilliant,The obvious solution in my belief (talk about thinking outside the square).
If the electronics are to difficult or risky to alter,just work on the mechanical location of the accelerator peddle.
It should be fairly simple to rig up a cable system to operate the pedal and allowing for overide if required.
Even an old 60 series system could be probably used in modified form,from memory these had a twist locking cable which acted directly on the pedal.
Thanks guys I will report if successful.
Great truck, 2000 gu,new Nissan 3.0 litre engine.auto,crawler gears,and-----hand throttle control?
Regards

Seriously, I have a car-washing sponge that I leave in the door pocket. When I shift into 4wd, the sponge goes under the pedal. Problem solved. Easy.

Josh.