Random Misfire Occurs During High Engine RPM & Load, Or Under Random Conditions

Check for:

• Correct fuel pressure. See FUEL SYSTEM in BASIC DIAGNOSTIC PROCEDURES article.
• Worn or broken spark plug wires.
• Worn or damaged distributor ignition housing.
• Malfunctioning ignition control module. See SYSTEM & COMPONENT TESTING article.
• Valve adjustment out of specification. See ON-VEHICLE ADJUSTMENTS article.
• Crankshaft speed fluctuation sensor malfunction. DTC P1336 & DTC P1337: CRANKSHAFT SPEED FLUCTUATION (CKF) SENSOR  .