P030X errors misfires after plugs and coils replaced

[jeep]

Originally Posted by andrewwynn

Get live voltage reading it should be 14.6 ± .3. Get car started and drive around the block after clearing codes. Did battery for from non use or was it a surprise?

Have had the battery problems for a while. Nowdays the car is not used as much as my daughter has been learning on it, and it did throw the high battery drain error few days back. I was planning to charge the battery nevertheless.

Yesterday when I tried driving the car it immediately went on limp mode and threw 4x4 and DSC malfunction errors on the screen. I was barely able to get it back into the garage. No chance of risking driving till I am able to resolve the cold start vibrations issue.

Was pulling out the new coils to put back the old ones to see if the errors dissapear, but looks like the new coils vacuum sealed on to the spark plugs, was very difficult to get them out, broke 2 of the latches in the process. Last one is still stuck all the way in the back. If it doesn't come out will replace the rest and try starting the engine. Might be easier to take it out on a slightly warm motor.