I am having the E-24 CODE also. I have changed the pedal sensor and it comes back. I changed the whole assembly from another unit with no problems and the code comes back. anyone have any ideas on what to check or fix. I can't find anything else wrong. Any help would be appreciated.

actually more than the accelator sensor can set this code
the throttle sensor also can send feedback that can make the ecm think there is a problem with the accerator circuit.
According to cat's HPK document on this code:
A mechanical malfunction of the throttlebody.
Also any time the battery is disconnected or throttle body has been disconnected/replaced or the accelerator sensor has been disconnected/replaced you must perform an accelerator released position learn, throttle valve closed position learn, and idle air volume learn (TAS Fast Normal)
Failure to perform these learns may cause this code to set.

The Definition of DTC E24:
- The accelerator pedal position sensor 1 output voltage has been approximately 0.15 volts or less for a predetermined amount of time.
- System has detected disconnection by short circuit or open and turns the mil light on and sets code E24.

Just to help you with this accelerator released position learn here is how to do that
- Turn key on and count 2 secs
- Turn key off and count 10 to 12 secs
- Turn key on and count 2 secs
- Learn completed and key may be turned off

There is alot of other pin point troubleshooting information in this HPK document but i cannot post it here or pass it out.

I would try cleaning the throttle body first (this may or may not help as the trouble is inside the throttle body most likely)
It would pay to have a laptop and diagnoser software so you can monitor the pedal and throttle body ranges during movement. I have had throttle body's that would not fully open causing problems such as this because the linkage inside gets dried out and is not lubed enough and starts binding up.


as edward said make sure the accelerator pedal sensor is adjusted correctly and nobody has tampered with the screw on the floorplate or any other screws in the pedal mechanism, the pedal mechanism has 2 screws on it that allow for start and end point adjustments, if these are changed this will cause a code to set.
Also inspect the stop on the pedal control and make sure its not broken, this can also cause the pedal to travel too far and make a code set.

good luck

What should the sensor be set at ?

Most of the time it helps to provide a correct serial number and model number.
Since this system is most likely the same as the Catibishi / Mutsupillar forklift, an e24 there is an accelerator sensor fault.
Tell the operator to not mess around with the accelerator pedal stop screw, and you crank that stop screw up 1 turn (longer). it probably happens when he is standing on the pedal and he may be big enough to bend the pedal a bit.
If it keeps happening, you may need to replace or clean the accelerator sensor.