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Diagnosing ignition system misfires can be a difficult task, especially when the concern is intermittent. This course will improve the technician’s ability to identify the root cause of ignition system faults. The ignition system components that will be covered include crank and cam sensors, knock sensors, coils, spark plugs, and spark plug wires, as well as computer-controlled ignition timing and spark delivery strategies from multiple automobile manufacturers. Cylinder misfire detection and diagnostic strategies, known malfunctions, real-world case studies, and diagnostic exercises will be presented.