P0300 Code The Gateway to Enhanced Engine Performance

The OBD II P0300 fault code stands for random or multiple cylinder misfires detected. Cars have 4, 6, 8, or more cylinders, depending on the engine size. no individual cylinders have come up on code..just random misfire code. Also disconnected battery wires as someone suggested to see if pcm would ... A P0300 trouble code means that one or more cylinders is misfiring and not completely burning its fuel/air mixture. Bearing in mind that you ... P0300 code is still present. Today I hooked up my OBD2 scanner and it said I had 2 codes. I was like hot damn maybe a cylinder number to go ... The P0300 engine code indicates a misfiring cylinder problem in your vehicle. The misfiring happens when insufficient fuel is burned or when the ... I have 134 miles on the clock, and have been getting misfire code since day one. Taking it in to dealer on Monday. This code is extremely vague and lists a lot of things like fuel pump, injectors, vacuum leak and various other things as possible causes. If the O2 sensor gets a bad reading, it will cause a cylinder misfire. They should last at least 100k but you're getting close to it so it's ... I am working on my daughters 2003 ZR2 with around 150k miles.I am dealing with the Dreaded P0300 code. I have the flashing service engine light, car runs OK. The engine light has come on, but goes off after a few starts or running time. It comes on when truck is idling or street driving---niot while on the highway ...