2003 Jeep Liberty Sport has code #P0122 & P0455

Question

What do these codes mean-

p0122 & p0455

on my 2003 Jeep Liberty Sport 3.7?

Answer 1

Hi there,

P0122 means you have an issue with the throttle position sensor on the throttle body reading wrong. Many times replacing the sensor will resolve the problem.

P0455  means there is a vapor leak in the evap system. It's possible there is an issue with the gas cap, but in most cases a smoke test should be done to try and determine where the leak is, then the repairs be made.