Short description: Ignition: Notes
ECM uses the actual air mass per combustion and engine speed to calculated ignition timing. Ignition timing is retrieved from a matrix in which air mass per combustion and engine speed indicate a specific value. This value then undergoes a number of corrections based on operating conditions, e.g. coolant temperature and charge air temperature. The ignition coils are regulated based on the corrected value for camshaft angle and ignition timing. The value is calculated for each combustion to optimize function. The ignition coils have an integrated power amplifier.