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No - I used Bosch Iridium Spark Plugs (9604) - which are supposed to be compatible. Looks like the gap is pre-set to 0.040. That being said - I was getting the codes before I changed the plugs/coils

Thank you for the response. There is just over 222k. I also changed the spark plugs and the coils (originals) when I first got the codes - concentrating on the P0301. Just put some injector clearer in the other day when I filled up - probably only have 1.5 hours of run time with it added...

Greetings everyone. First time poster here (and I have searched to see if my issue has previously been discussed with no luck). Here is my issue that I would be grateful if anyone has any suggestions: I have a 2008 Liberty with 222k miles. I am getting a CEL that is throwing P0201/P0301...