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Engine Ignition - 4.2L (2003.5-09) Expand All (for easy ctrl-f) Collapse All Specifications Description and Operation Diagnosis and Testing Engine Ignition - VIN Range: G00442->G45703 Inspection and Verification Visual Inspection Chart Driver Information Chart Default mode Definitions Diagnostic Trouble Code (DTC) Index Pinpoint Tests PINPOINT TEST G290076p1 : DTC P0300, P0301 -0308, P0351 -0358; RANDOM MISFIRE DETECTED, MISFIRE DETECTED, (CYLINDERS 1-8) IGNITION COIL PRIMARY CIRCUIT MALFUNCTION, (CYLINDERS 1-8) G290076t1 : CHECK COIL FUNCTION BY SUBSTITUTION G290076t2 : CHECK THE IGNITION COIL SUPPLY VOLTAGE CIRCUIT G290076t3 : CHECK THE IGNITION COIL GROUND CIRCUIT G290076t4 : CHECK THE IGNITION COIL SWITCHING CIRCUITS FOR HIGH RESISTANCE G290076t5 : CHECK THE IGNITION COIL (CYLS 1, 4, 6, AND 7) MONITOR CIRCUITS FOR HIGH RESISTANCE G290076t6 : CHECK THE IGNITION COIL (CYLS 1, 4, 6, AND 7) MONITOR CIRCUITS FOR SHORT TO B+ VOLTAGE G290076t7 : CHECK THE IGNITION COIL (CYLS 1, 4, 6, AND 7) MONITOR CIRCUITS FOR SHORT TO GROUND G290076t8 : CHECK THE IGNITION COIL (CYLS 2, 3, 5, AND 8) MONITOR CIRCUITS FOR HIGH RESISTANCE G290076t9 : CHECK THE IGNITION COIL (CYLS 2, 3, 5, AND 8) MONITOR CIRCUITS FOR SHORT TO B+ VOLTAGE G290076t10 : CHECK THE IGNITION COIL (CYLS 2, 3, 5, AND 8) MONITOR CIRCUITS FOR SHORT TO GROUND PINPOINT TEST G290076p2 : CHECK SPARK PLUG RESISTANCE Engine Ignition - VIN Range: G45704->G99999 Removal and Installation