po320 is the engine speed circuit malfunctioning.( AKA) crank sensor.
po320 indicates acrankshaft position sensor problem should probably be replaced
what is this code p1491 on 2003 jeep liberty
trouble code p-0837 fo jeep liberty
Misfire code
Scan tool, will give you a trouble code as to why the computer turned the check engine light on.
It goes into limp mode when the computer detects a problem and sets a code. Have it checked for codes.
P0601 is an internal engine computer failure. The engine computer will need replaced.
This code refers to the front oxygen sensor
Trouble code P0440 means: Evaporative Emission System
The transmission computer has also set a code, have the tcm checked.
2004 JEEP LIBERTY 2.4L 4-cyl Engine Code 1CAPACITIESEngine, with Wix Filter 51348..........5.0 quarts2004 JEEP LIBERTY 3.7L 6-cyl Engine Code KCAPACITIESEngine, with Wix Filter 51516..........5.0 quartsHope This Helps.
Camshaft position sensor malfunction.