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Ignition coils

EFI Tuning Fundamentals

Discussion and questions related to the course EFI Tuning Fundamentals

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How can you determine wether a coil should be set to rising or falling edge.

In almost all instances the ignition system will use a falling edge trigger. The only exceptions I've come across are some Honda, Ford and MSD ignition systems. MSD make it easy as their systems are documented in the instructions.