Solo2miata
Member
I have a 2010 MS3 that I got in Nov 09. It has 8,000 miles on it. Today the CEL came on. First of all, my local dealer wouldn't even check the code because they aren't a speed dealer! They suggested I drive 2 hours to the nearest dealer. Anyway, I went to Advanced, they ran the code and it's a P0300 random multiple cylinder misfire. Looked it up on the forums and I am thinking there are a few things it could be...plugs, wires, bad gas, egr, and someone suggested re-flash the PCM. The question is should I drive the 2 hours to let the dealership look at it or should I try things myself first. Dont want to void warranty but also dont want to miss work and waste a day sitting at the dealership. Comments? Suggestions?