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DTC P0300 - P0308 NO. 8 - 1 CYLINDER MISFIRE, MULTIPLE CYLINDER MIS- FIRE EC-301 C D E F G H I J K L M A EC 5. CHECK IGNITION SPARK 1. Stop engine and turn ignition switch OFF. 2. Remove ignition coil assembly from rocker cover. 3. Connect a known-good spark plug to the ignition wire. 4. Disconnect all injector harness connectors. 5. Place end of spark plug against a suitable ground and crank engine. 6. Check for spark. OK or NG OK >> GO TO 6. NG >> Check ignition coil, power transistor and their circuits. Refer to . 6. CHECK SPARK PLUGS Remove the spark plugs and check for fouling, etc. OK or NG OK >> GO TO 7. NG >> Repair or replace spark plug(s) with standard type one(s). For spark plug type, refer to, 7. CHECK COMPRESSION PRESSURE Check compression pressure. Refer to EM-65, "CHECKING COMPRESSION PRESSURE" OK or NG OK >> GO TO 8. NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets. 8. CHECK FUEL PRESSURE 1. Install all removed parts. 2. Release fuel pressure to zero. Refer to EC-46, "FUEL PRESSURE RELEASE" 3. Install fuel pressure gauge and check fuel pressure. Refer to OK or NG OK >> GO TO 10. NG >> GO TO 9. SEF575Q SEF156I Standard: 1,320 kPa (13.5 kg/cm 2 , 191 psi)/300 rpm Minimum: 1,130 kPa (11.5 kg/cm 2 , 164 psi)/300 rpm Difference between each 98 kPa (1.0 kg/cm 2 , 14 psi)/300 rpm At idle: Approximately. 350 kPa (3.57 kg/cm 2 , 51 psi) |