P0300 Code Demystified A Path to Engine Optimization

The P0300 code indicates that one or more cylinders are not firing correctly, disrupting the engine's ability to efficiently combust the air- ... 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. 2004 Chevy Express Van 6L V8. I can feel misfires, and P0300 DTC. Just P0300 without specific cylinder number. I know this can be a tricky one. A P0300 is called a random misfire, but often there is only one offending cylinder. The real meaning of P0300 is “ I'm detecting misfires, but the count rate ... The inspection facility determined the codes; Diagnostic Trouble Codes (DTC) P0300 through P0306 - Cylinders 1-6 Misfire detected as well as ... P0300 is for a random misfire and a faulty crankshaft position or camshaft position sensor can cause this code. There's basically 3 reasons why a cylinder misfires; 1. Loss of spark(which you've addressed) 2. Air/fuel mixture too unbalanced to ignite 3. Loss of ... I have 134 miles on the clock, and have been getting misfire code since day one. Taking it in to dealer on Monday. The P0300 code is for a random misfire. A tune-up might help but I doubt it. It never hurts to put a new set of plugs in. However, random ... It is coming from the catalytic converter. It's a sound like tin rubbing tin, like a muffler clamp is loose or something of that type.