The following schematic shows the Fiat Punto (including Hatchback and Selecta 1.1L, 1.2L petrol engine and 1.7L diesel engine) Ignition Coil circuit. The ignition system is integrate with the fuel injection system to form a combined engine management system under the control of one ECU. The ignition side of the system is of the static (distrbutorless) type, consisting only of two twin-output ignition coils located on the left-hand side of the cylinder head. Each ignition coil supplies two cylinders (one coil supplies cylinder 1 and 4, and the other cylinders 2 and 3). Under the control of the ECU, the ignition coils operate on the wasted spark principle.

fiat punto ignition coil circuit

LEGEND:
1 Primary Windings
2 Secondary Windings
3 Power Module (inside ECU)
4 Spark Plugs



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