one of the most common problems with the throttle body code E23 or E24 is broken wires at the plug harness.
There could also be a throttle plate linkage hanging or damaged gears in the motor causing it to hang.

Also if the battery is disconnected, or the throttle body disconnected/replaced or the accelerator sensor disconnected/replaced you must perform:
- accelerator released position learn
- throttle valve closed position learn
- idle air volume learn (fast TAS normal)
Failure to perform these learns may cause these codes to set.