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Electric Control Unit of Fiat Coupe Ignition System (1995)

Tuesday, 24. March 2009 by Arya
1995 Fiat Coupe ignition system is static, inductive discharge type. The power module is external to the ECU, while the high tension supply comes through four ignition coils fitted directly to the spark plug (top-plug coils). The primary winding of each coil is supplied with power from the battery through a dual relay, and earthed through the control module. The ECU computes optimum ignition advance on the basis of engine speed and load. This is implemented as the time between the moment when the power supply to the coil primary winding is cut and combustion TDC. Read more [...]