Typical MOTORCRAFT Ignition Oscilloscope Patterns

To analyze the Solid State (SSI) and Dura-Spark Ignition Systems using an oscilloscope, follow the procedures recommended by manufacturer of scope.

The electrical display patterns will appear similar to patterns of conventional breaker type ignition systems except as shown in Figure.

Fig 1: Normal Oscilloscope Patterns Shown For Solid State Ignition (SSI) Systems

Courtesy of FORD MOTOR CO.

Reluctors have 1 tooth for each cylinder.