HONDA: MIL COMES ON WITH DTC P0300 THRU P0304. ONE OR MORE SPARK PLUGS MAY BE FOULED, AND THE MIL COMES ON WITH AT LEAST ONE OF THESE DTCS, P0300 (RANDOM CYLINDER MISFIRE DETECTED), P0301, P0302, P0303, OR P0304 (NO. 1 THRU NO. 4 CYLINDER MISFIRE DETECTED). REPLACE ANY FOULED SPARK PLUGS, AND UPDATE THE PCM. *PE UPDATED 7/29/11. *PE