P0300 — P0301 Honda and Toyota Cylinder Misfire

P0300 is OBD2 trouble code for Random/Multiple Cylinder Detected. P0301 shows that Cylinder number 1 experiencing  misfire. A popular error on Honda vehicles that may show up if the coil packs of your car are at an end. Replace the bad coils or the complete set and check with an ohm meter before installation. P0351 is code for no 1 coil circuit malfunction.