DTC    P0300    Random / Multiple Cylinder Misfire Detected

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

CONFIRMATION DRIVING PATTERN

INSPECTION PROCEDURE

CHECK ANY OTHER DTC OUTPUT (IN ADDITION TO MISFIRE DTCS)

READ VALUE USING INTELLIGENT TESTER (MISFIRE RPM AND MISFIRE LOAD)

CHECK PCV HOSE CONNECTIONS

CHECK MISFIRE COUNT (Cylinder #1 (and #6) Misfire Rate)

CHECK SPARK PLUG

CHECK FOR SPARKS AND IGNITION

CHECK CYLINDER COMPRESSION PRESSURE OF MISFIRING CYLINDER

CHANGE NORMAL SPARK PLUG AND CHECK SPARK OF MISFIRING CYLINDER

CHECK FUEL INJECTOR OF MISFIRING CYLINDER

CHECK VALVE CLEARANCE OF MISFIRING CYLINDER

CHECK AIR INDUCTION SYSTEM

CHECK VALVE TIMING

CHECK FUEL PRESSURE (LOW PRESSURE)

CHECK FUEL PRESSURE (HIGH PRESSURE)

READ VALUE USING INTELLIGENT TESTER (COOLANT TEMP)

READ VALUE USING INTELLIGENT TESTER (MAF)