2003 Kia Sorento Diesel accelerator stopped responding,

What is your question?

Kia Sorento Diesel accelerator doesn't respond, though not often but it's getting worse by the day, sometimes it will normal, few moments it won't respond, I have changed the accelerator Sensor, same problem. Please any advice on way forward to get this fixed?

What makes this problem better or worse?

Unpredictable

How long has your 2003 Kia Sorento had this problem?

A few weeks ago