Possible Causes

PCM sets DTC P0300 and a specific cylinder code (DTC P1201-1206 or P1301-1306) when a random misfire has been detected. Possible causes of a random misfire are:

• Insufficient flow or pressure from fuel pump
• Blocked, clogged or leaking fuel feed line
• Clogged fuel filter
• Fuel pressure regulator stuck open
• EGR System malfunction
• Ignition coil wire open, leakage
• Ignition control module malfunction
• IAC Valve malfunction
• Fast idle thermo valve malfunction
• Carbon deposits on valves
• Low engine compression
• Gasoline that does not meet Owner's Manual specification