Dan;
E24 is telling you that the vehicle's accelerator sensor signal circuit has a problem.
E25 O2 sensor circuit has a problem,
To best define the issue or issues remove the cup holder from the dash untape the OBD II blue plug install a OBD II handset that you can pickup at any good auto parts store. You should receive the P code which will help in the solution to problem. To clear codes with a good accelerator pedal sensor, key switch ON, accelerator released, wait 3 sec., depress accel pedal fully and then release. Repeat this four more times within 5 sec. Fullu depress accel for 7 sec and then release, count off 10 sec the dash icon will start blinking fault codes. Fully depress accel pedal and hold for 10 sec. ERROR CODES ERASED !