Thread: Jumpy Td5 Accelerator plz help

Sounds like the throttle potentiometer is shot to me.

you may have the oil in the harness thing but more than likely your throttle position sensor is on the fritz..

the first is a PITA the second is an easy fix bit a mite pricey.

Not sure if this will help at all, but does it do it in both high and low range?

There are different throttle maps for high and low.

It might help work out where the problem is if you can discover whether it only does it in high range or in both.

sounds silly but GU 2.8 TD nissan patrol throttle was similarly jumpy on low throttle solution for many was cheap piece of sponge behind accelerator pedal, l opted for powerchip upgrade solution at $1200

hey thanks 4 the replys everyone. spudboy, it does do it in high range more that low range but it still kindda does it in low range but no where near as bad as in high range

then it is definately the throttle position sensor

When in high range the first 50% or so of power is controled by only the first 1/4 or so of travel and the rest of your power by the last 3/4 of pedal travel, giving you good control at higherer speeds.

when in low range the ratios reverse the first 50% of power is deliverd by the first 3/4 of pedal movement and the other half in the last 1/4 of pedal movement giving good control of the low speed situations.

if it was oil in the harness the fault would be the same at relative engine speeds

since it changes with range selection it must be the TPS...

Hi,
Just remember that there is a 2 wire and a 3 wire throttle potensiometer depending on the model.
The 3 wire was produced to smooth out the pedal action.

Cheers Aston

Originally Posted by aston

Hi,
Just remember that there is a 2 wire and a 3 wire throttle potensiometer depending on the model.
The 3 wire was produced to smooth out the pedal action.

Cheers Aston

thanks everyone for helping if mine is a 2 wire potensiometer can i put a 3 wire one in ?? or the other way around
Regards