Review Of 2006 Jeep Liberty Check Engine Light Random Misfire Ideas. Cylinders one three and five seem to be running okay cylinders two four and six are carbon filed. Web p0300 is a generic obdii code that can occur with the jeep liberty.

Just disconnect the upstream sensors for now and testdrive. The problem is suddenly started having a rough idle at start up, and then the check engine light came on. Web the diagnostic reads random misfiring.