Pedal position sensor codes keep coming up and preventing my car from driving.

What is your question?

The car goes into a limp mode and the only acceleration possible is with the pedal all the way down. It seems to happen more often when the gas is low but still happens when it is full. The only way for the car to work again is to pull over and clear the code.

What makes this problem better or worse?

Driving in manual mode seems to make it better.

How long has your 2004 Lexus IS300 had this problem?

A few weeks