Fueltec FT 500 - 12.2 Ignition with crank trigger; Individual coils - electrical connections; Wasted spark coils - electrical connections

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12.2 Ignition with crank trigger
When controlling the ignition in distributorless systems, wasted spark or individual coils per cylinder are needed.
In this case, coils are triggered by different outputs, according to the number of cylinders.
Ignition outputs (gray wires) are triggered according to the firing order set up on the ECU.
Example: 4 cylinder engine with individual coils
Gray outputs are selected automatically, according to the number of cylinders. Gray
wires that will not be used for ignition control can be set up as injectors outputs
(Peak and Hold driver is mandatory) or auxiliary outputs (relay needed).
Individual coils electrical connections
On FT500, these connections must be done by matching the output number with the cylinder number.
Ignition output #1 controls cylinder #1 coil;
Ignition output #2 controls cylinder #2 coil;
Ignition output #3 controls cylinder #3 coil;
When working with dumb coils, an external ignition module must be used (as the FuelTech SparkPRO). In this
case, ignition outputs from FT500 are connected to the ignition module inputs.
Wasted spark coils electrical connections
In this case, ignition output #1 controls cylinder #1 and its twin, ignition output #2 controls cylinder #2 and its
twin, etc.