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What do these codes mean-

p0122 & p0455

on my 2003 Jeep Liberty Sport 3.7?

Vehicle: 2003 Jeep Liberty Sport 4WD

1 Answer

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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.

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