Engine Whisperer Diagnosing and Repairing P0300 Code

They can be caused by ignition system problems, fuel system problems, or mechanical problems. Code P0300 often appears with other fault codes ... The code was "P0302" Cylinder 2 Misfire. The truck is now at the dealership. Im waiting to hear back from them to see what they find. I have 134 miles on the clock, and have been getting misfire code since day one. Taking it in to dealer on Monday. The random misfire code can be caused by two things - your ignition or your fuel delivery. First thing of course is to make sure your plugs and wires are in ... I have been battling the dreaded P0300: Random Multiple Misfire Detected. So far I have replaced plug and ignition coils, and the intake and exhaust solenoids. It that has been throwing a p0300 random misfire code as well as the code for the o2 sensor after driver side cat. Truck idles yet any speed ... They run tests and came to the findings that it have a code P0300. Now, the technician told me he can't fix it because the engineers at Dodge ... It is very likely that you have an excessive amount of Black Carbon and Greasy Gas Gum built up around the Valve Seats. I have a 2016 Versa Note with a P0300 code and running horrible. I replaced plugs, crank sensor, battery, made sure it had good fuel, replaced the intake ... I've read it's pretty common with these trucks. Probably is crappy gas. Try 91 or 93 for a few fill ups and see if it throws a code again.